Tein Street Advance Z vs Flex Z Coilovers Compared. What's different & which one for my Honda/Acura?

We get TONS of questions on these items, which are Heeltoe's most popular coilover offerings. This video should answer 95% of your questions, and if any others come up be sure to ask below! Here are some timestamps for you:
0:37 - Street Advance Z Details
3:11 - Flex Z Details
5:00 - Preload: What it is and how to adjust it.
6:30 - Stroke/Travel Differences between SAZ and FZ.
10:28 - Made in China or Japan, and why it doesn't matter.
12:00 - Top hats reviewed; stock Base TL, stock S-Type bushings, and FZ upper mounts.
13:19 - Why some upper mounts don't have camber adjustment and some do (shocks versus struts)
14:05 - Heeltoe's exclusive Upper Mount Installation Services
SHOP Tein FLEX Z on Heeltoe: www.heeltoeaut...
SHOP Tein Street Advance Z (SAZ) on Heeltoe: www.heeltoeaut...
Use COUPON CODE "YTTEIN" for a discount!

[@zublits]

This is an amazing video. It's so rare to find someone on youtube who actually knows what they are talking about and has the experience and expertise to backup their opinions on various products. I really appreciate this. I've been looking at the Flex Z coilovers as an option to lower my Subaru BRZ, and just want to absorb as much information as possible before I make a purchase. This is exactly the kind of video I'm looking for.

[@Heeltoe.]

Thanks so much, I appreciate this comment. We agree there is a shortage of actual usable information out there.

[@DC2TypeR03]

Wow this is very informative. Best video out there for these Coilovers. U actually convinced me back to get the flex z. Was going to get bc coils. Thanks again !

[@douglascabinatan6042]

How are they

[@dj.excess]

This is great for those wondering the difference and debating which to get. This could have helped me years back when i had no clue. Im sure there are some out there that still don tknow and this shoudl help!! Great job Marcus!!

[@Heeltoe.]

Thanks for commenting!

[@supersabrosinho]

Superb video. It really says something when you're constantly answering questions both in the Acura page and in here.

[@Heeltoe.]

Thanks a ton for the feedback!

[@JamesThomas-sr2cg]

I have a '10 TL SH-AWD 146k miles and I was looking to get coilovers but wasn't familiar with the whole suspension setup. Being on Acurazine gave me a lot of useful info and this video pretty much answered any other questions I had. Also looking to lower 1-1.25 inch. Thanks for the video!

[@edwardtan4631]

Went with flex z on my 07 accord, I never looked back no regrets. I can set the suspension for autoX and street. Now it's time for some TL-S rear sway bar and EDFC active pro. BTW thanks Marcus for excellent customer service.

[@Heeltoe.]

Very welcome! We will have a special on EDFC kits for Cyber Turkey Days next week, be sure to check it out!

[@sloth_7665]

How is it when dailying? I've been reading forums saying the mounts that come with the flex z are rough for daily. I'm looking for my 97 prelude

[@user-in7vw5bx8c]

@@sloth_7665 Just installed Flex Z on my 97 Prelude. One of the best mods for spirited daily driving.

[@MurpheeLaw]

This is the kind of video we all need, to learn stuff we didn't know otherwise. I've had Coilovers before on my old RSX-S, but didn't have a lot of this info. Thank you! (I didn't have TEIN brand Coilovers.)

[@Heeltoe.]

Glad this video was helpful! Thanks for watching, be sure to sub!

[@Onelovej]

Thanks totally help me out to firm up a little bit I was having buyers remorse until I watch this video

[@Heeltoe.]

Step 1: Install correctly Step 2: Tune it in!!!

[@ImNotMC]

This video is great! Looking for coilovers for my 10th gen Accord was wondering what the differences were between those coilovers. Thanks!!

[@Heeltoe.]

The function form are going to translate over to the Flex Z more than the SAZ.

[@DaKineGuy]

Nice video! I don't have a Honda, but I was looking for info about the TEIN Flex Z and this was very helpful :)

[@cdavid001]

Great video. I just made my decision to install the flex Z on my 04 Acura TL can't wait to get them.

[@Heeltoe.]

Good choice!

[@ngocquypham4306]

Very appreciated your video for tons of knowledge . Thanks you!

[@boboutelama5748]

This is a very informative video. If we could combine your vids with practial in terrain reviews it would be "actual tuner's heaven".

[@Heeltoe.]

YES! We definitely would like to evolve our videos to include install notes and driving impressions. Someday soon we hope.

[@boboutelama5748]

Just imagining the job to be done is starting to make my head ache a bit. ^^ A lot of luck to you. Stay strong and prosper my friends.@@Heeltoe.

[@donep3]

Amazing Video Marcus. I've been shopping for new suspension for my 3g TL 6speed. You answered mostly questions regarding TEIN coilovers. Now I will search for your video for Koni setup and top hats options because I am still confused about modifications or the strut mounts even with those you offer as a kit for Koni shocks setup.

[@Heeltoe.]

Thanks for the feedback. For the Koni yellow, you don't need to do anything except drill out a couple of the pieces because the shaft is a little larger. Obvious once you get in there.

[@spencersgarage]

Great video! Thanks for the info. Just ordered the Flex Z kit for my 1994 Integra GSR.

[@Heeltoe.]

Thanks so much!!!

[@kilgore8103]

How do you like them so far? I just ordered them for my 8th gen accord coupe

[@spencersgarage]

@@kilgore8103 I’m doing a full suspension rebuild. Going at my own pace, so it will be quite a while until I have the car rolling. Also doing a mild engine rebuild at the same time... sooo yeah, it’s going to be a while lol. Subscribe to my channel and I’ll let you know as soon as my project is done.

[@kilgore8103]

@@spencersgarage just subbed brotha 🤙🏼

[@tonybullet1382]

the video we alll been waiting for

[@Heeltoe.]

Been here the whole time :)

[@grandroyalm_c5423]

Fantabulous vid!! i have a '12 Accord V6 EXL coupe and i would love to use your expertise on how to upgrade my Honda suspension/parts to the max.

[@Heeltoe.]

We'll be happy to support you. Email over to Heeltoe!

[@kilgore8103]

I have a ‘10 i4 coupe and just ordered the Flex Z’s! Did you end up getting either of them? And how do you like them if you did?

[@SuperJsToysChannel]

Great video. Thank you very much. By the way, about the quality of products made in Chinese subsidaries by foreign brand. I have more than 10 years management experience in big manufactory of China subsidiary of global brands (USA, EURO). As we know to achieve a good quality product, we need good input (raw materials) and good processing (design, equipment, control, people). The raw materials from local Chinese suppliers are not always good. Sometime because of the time and cost pressure, management will concessionly accept to use these "not-so-good" materials (CEO override QC department). Even following the HQ process to produce, with those material, we can't 100% achieve the quality requirements. Conclusion, Tein suspension from Chinese subsidaries, yes better than Chinese local brand/unbranded suspension. But still more chance to defaut than made in Japan.

[@_Jnthn]

Solid a$$ video. Alot of info. Keep it up. ✊🏽

[@Heeltoe.]

Thanks for watching!

[@AlphaKilow]

How’s the longevity of the pillow ball mounts on the Flex Z? I need something that won’t squeak/rattle/clunk as the car is mainly a daily driver.

[@Heeltoe.]

They are really rather good, and being rubber upper mounts on wishbone cars they are great at isolating sound. For strut cars they can transmit more noise which we have seen with the 9th gen accords. Something that happens with the BC as well. Some cars you just need OEM upper mounts to keep them perfectly quiet.

[@Engineerboy100]

Good job on the coilovers and good advice. I installed similar coilovers on my Toyota and I love them. I did a video on my channel of the install and will be making a review video soon, I've already started shooting the raw footage. @

[@PiterStreak]

great explanation marcus!

[@Heeltoe.]

Thanks! Always hoping to make things as clear as possible.

[@rikimorton6951]

How do the flex z ride are they still soft or harsh

[@wutdafeezi]

Marcus is the best in the biz my go to guy!

[@Heeltoe.]

Thanks so much for the support!

[@ShanerTheGrey]

Hey thanks for all of the info guys great video!!!

[@Heeltoe.]

Thanks for watching! HTINYOURCORNER for 2023!

[@ShanerTheGrey]

@@Heeltoe. yeah man just installed some ..Chinese made.. flex Z’s LOVE them dude. 24 way adjustability. Great for daily. Your video was very informative

[@Dillon1791]

Great video Marcus. I might change out the konis yellows and eibachs in my cart to the Flex Z for my 04 TSX. Between the two which would you recommend for mostly daily driving but some auto X and track day uses? So far I have loved the koni and eibachs on my Acura Vigor.

[@Heeltoe.]

I would go Tein Flex Z all day. I do all kinds of driving on mine and it's done everything I've asked of it.

[@j_white1305]

@@Heeltoe. How many miles can one reasonably expect to get out of the Flex Z before they would require a rebuild or replace? Just regular driving.

[@Heeltoe.]

@@j_white1305 The Flex Z is non-servicable so they would be replaced. Dampers are a wear item and performance does tend to degrade over time. Depending on the use and how much you rely on them working like "new" versus being suitable to drive on regularly, you could expect to get anywhere from 40,000 miles to well over 100,000 miles.

[@sbcl9079]

It's good for daily driving. I have a week riding on them in the somewhat rough Los Angeles area roads. Not even a complaint from my mom. I did adjust the Tein recommended specs by adding 11mm of preload to the front and 10mm to the rear. I also lowered the shock bodies by the same amount.

[@eptv3644]

@@sbcl9079 Can you elaborate on the recommended steps? Are they on the instructions?

[@nonamebleach]

Proper review! I just ordered some street basis z. Should get em this week! 👌👌

[@zoshy2403]

No Name Bleach the basis z are some of the worst coilovers you can buy I bought the flex z’s Good luck though

[@christianmonte1874]

@@zoshy2403 do you like the flex z?

[@zoshy2403]

@@christianmonte1874 I did it’s more for if you just wanna occasionally track your car, I would skip over them if you wanna stance your car or if you’re gonna be making a track build. I sold mine and bought pbm coilovers

[@christianmonte1874]

@@zoshy2403 would you recommend them for daily driving?

[@Heeltoe.]

@zoshy the SBZ are the literal same thing as the SAZ, just without damping adjustment. Hard to say they are the "worst." If you are someone just looking for new shocks and springs with mild lowering and moderate change in ride they are a GREAT value!

[@gregfisher1657]

A helpful video thanks! YOu said it in a way that some stuff finally made more sense to me. I have been overthinking this wat too much! I was originally looking at some Teins. I got sidetracked with all the trash talking and marketing on the web and forums. Buy this not that and those suck and so on... I will be looking at more of your videos, Thanks

[@Heeltoe.]

So glad it helped! Tein is a really great brand. Just trying to keep the info simple.

[@JohnWick-bb9jl]

Mistakes i made so you can learn; Buying the advance instead of the flex z (the top hats alone are worth the price difference). Not buying custom springs first(the ones they come with are very soft (4kg and 3.5kg)). Buying tein at all (BC racing is a better option i should have done more research). Having stuff professionally installed (any car that isn't mercedes or cadillac you can do it on (took 2 days). Also related: do not buy lowering springs if you have aftermarket wheels. Just dont. Camber bolts should only be a temporary solution.

[@Heeltoe.]

BC is great for certain needs, but they aren't universally better than Tein, and the SAZ is an awesome system on it's own. On paper the FLEX Z provides more value, and the customization of the BC kits is nice as well! But this is all part of the reason getting reliable consultation before buying is helpful. And also, sometimes you just need to try something to know how you like it.

[@JeLifeCoach]

My street advance z spring rates for my civic si are 6k and 7k.

[@MRMAN-wb1tv]

Wow. The spring rates on my Flex Z for a 04 gs300 came in 12k 10k.

[@JohnWick-bb9jl]

@@MRMAN-wb1tv Dude even the BC coils for this car have 5k and 4k that sucks.

[@JohnWick-bb9jl]

@@MRMAN-wb1tv I'm ordering godspeed coilovers this weekend with 8k front and back we will see how it is.

[@bler43]

both of this kits can be tuned to be comfortable for a daily driver civic fc?

[@s2knott]

SOLID video, thanks! Cant wait to install my Street Advance this week

[@christianmonte1874]

Are you liking them so far?

[@DiscipleofChrist101]

Do the Flex Z's come preadjusted out of the box for plug and play? Or do we have to adjust them at all?

[@Heeltoe.]

They come pre-assembled and you can adjust them using the specs in the manual. They give some baseline specs.

[@vtecbrothers8235]

This is grate video. grate detailed explanation.

[@Heeltoe.]

Glad it was helpful!

[@HandlewithcareVibes]

Pretty informative, thank you.

[@Heeltoe.]

Glad it was helpful! Thanks for watching!

[@johnelway4826]

So I'm using Flex Z on a RallyX Corolla. Using a smaller wheel and tire I lost 1.5 inches of clearance and I used a metal coilover spacer that mounts on top of the strut to get the 1.5 inches back. Someone said I'm losing travel and increasing the stiffness this way and it was definitely stiffer. I reset the preload on the front by lowering the control arms on chocks and backing it off, then biting it back down 5mm pass where the spring stops moving. Am I missing something?

[@Heeltoe.]

By adding the spacer bwtween the chassis and the damper mounts you probably preloaded the bushings. Did you relieve preload in the bushings?

[@edgarbecerril8812]

Link for the upper mounts please???? 2013 Honda Accord sport

[@Heeltoe.]

Here you are: www.heeltoeauto.com/honda-genuine-upper-mount-hat-kit-2013-14-honda-accord-cr-ct.html

[@ayupeobad1875]

Great video and explanation... Trying to learn all of this and your video was very helpful... Do you make coilovers for 2000 Nissan Maxima?

[@Heeltoe.]

Glad it helped you! Tein does make a Street Advance Z kit yes. We can help get you one. Email [e-mail] for details.

[@foxxxxxi8814]

great info!

[@byEssIX]

I would love to get Flex Z's for my 06-11 Civic DX, but they're sold out everywhere!!!

[@Heeltoe.]

Uh in stock at Heeltoe! Aka the people who make this video :D www.heeltoeauto.com/shock-spring-kit/tein-suspension-flex-z-fz-coil-over-damper-set-front-rear-honda-civic-2006-2011-all-vsb14-cuas1-tei.vsb14-cuas1-123.html

[@byEssIX]

@@Heeltoe. I see now! Thanks

[@j_white1305]

Nice video, thanks for this. I have Koni Yellows and a Pro-Kit on my TSX and honestly, I hate them. How does the Flex Z feel vs the Tein Mono Sport you have on your site? I'm planning on re-doing the suspension sometime in the next few months.

[@Heeltoe.]

Koni/Eibach is a really very highly regarded setup. We wondering what the concern with it is, actually. The Flex Z is more of a street sports system while the mono-sport is a more performance system. Both can be used on the street or on the track. You'll get more comfort from the flex z and more body control with the mono-sport (firmer feeling).

[@j_white1305]

I haven't had any issues, just some personal preference things. (copy paste from my TSXClub thread) On the lower perch in the back the car is too low, upper perch the car looks raked. The front is too low, it makes it look like a lowered car, not something well sorted from the factory. I bought TL-S upper bushings and appropriate drill bit and since the car was so low I had to have all four fenders rolled ($$) to fit the Evo 8/9 wheels (17x8 e38 235/45/17) I could have used the extra money and time spent and put it into some coil-overs. My other car has Ohlin R&T (8k front 7k rear) coil-overs and I know it's not fair to compare but when I drive that for a week then drive the TSX, the Acura feels like total shit no matter what adjustments I do to the struts (currently full hard in rear half in front). Plus the spring rates on the Eibachs are 6.6k front and 3.9k rear and I think I need higher rates, otherwise, I get a lot of suspension travel over bumps/dips and such. There is one dip I hit every day leaving work and the Ohlin car handles it perfectly, the Acura hits it like a boat and I get a tiny bit of rub if I dont slow down. Sorry for the book.

[@ramonmartinezjr.5697]

@@j_white1305 honestly yeah I get what you're saying the Off the Shelf spring rates that eibach send you are way to soft. That seems soft in my integra I had to upgrade to 7kg in the front and 6.2kg in rear. That made a world of difference from the original 4kg or w.e. it was that they come with. Maybe just get a stiffer spring rate. Koni yellows are able to dampen up to 600lbs that's roughly 10.5kg

[@garymparsons]

I bought the flex z for a GT86. I tried to lower the rears but before I got to the desired height, the shock came to a stop and wouldn’t go any lower. Any ideas why, as it’s not as low as the front? 35mm front compared to 20mm rear

[@Heeltoe.]

The range on the front and rear don't depend on each other specifically. There are many applications where the front can go lower than the rear or vice versa. It's understood that you will be adjusting within the same range though.

[@ohmikeyo1]

Great video on Tein coilover.....I have a 2014 Acura TL awd and like to drop it about 1.5 to 2' can you please recommend a set for me with a stock ride feel ? also do I need to get a F+R camber kit to correct the alignment?

[@Heeltoe.]

Hey there! For your setup we will recommend the Tein SAZ kit (www.heeltoeauto.com/product.php?productid=195999), and probably will be best to get an SPC rear camber kit (PN 67540 www.heeltoeauto.com/product.php?productid=65327). Both available on Heeltoe!

[@soilBGuRu420]

hello bought the street advanced z how far can i go low? in the instructions provided it says to measure 45mm from the seat lock to the bottom from the locator tab but not sure if i can lower from that reference value ??? can i drop it below that point like 35mm or would that cause harm the coilovers?

[@Heeltoe.]

Hi, that is just a starting point for reference (starting point). The manual tells you how high the car will be at that setting. You can of course adjust up or down from there to a certain degree, and will not cause any problems.

[@renaldih]

Do you know if the stiffness adjustment is similar in Flex and Street Advance? The Japanese website says both have 16-steps adjustment.

[@Heeltoe.]

Yes it is the same 16 clicks for both setups.

[@TylertheGeek28]

Do you have a rough idea how much of a drop a 06-11 Civic would see by just installing the Flex Z's and using the stock config?. I was considering getting H Tech and Koni streets for a simple 0.7-1 inch drop all around but the fact I can adjust the stiffness is a good idea especially on Canadian roads lol

[@Heeltoe.]

The FLEX Z for the 06-11 Civic, according to Tein, can be adjusted to a height just around an inch lower than stock.

[@TheMenghi1]

I am looking to purchase EnduroPros for my Honda Accord. Would they be comparable to my OEM? Lastly, how would the ride compare to KYB Excels?

[@Heeltoe.]

Yes they are! The Tein EnduraPro is on a whole other levels than the KYB would be. They are sport tuned with hydraulic bump stop. Very high tech!

[@vtecdpn100]

Hi there, I’ve read most of your replies on the out the box “specs” but what is your recommended damping setting for front rear. I could have swore you talked about this in a video but cannot find it.

[@Heeltoe.]

The damper setting are not set to any specific setting out of the box. We don't have a recommended damper setting for any one car or any one person. We should do a video on that!

[@JackRR15]

Man I got some Bilstein b14 pss for my BMW but the way they explain where to seat the locking collars to is so confusing.

[@Heeltoe.]

Finding the right way to explain things can be a challenge. Sometimes it takes going over it a few times.

[@JackRR15]

@@Heeltoe. I just winged it to my wanted ride height and it drives good

[@SkynetXOFPV]

Nice vid!

[@Heeltoe.]

Thank you!

[@davidmartinez391]

Thank you so much for this information I have an Acura TL type S 2007 and that I am planning to change my suspension but I do not know what, suspension I am going to bye I do not want to super slammed I wanted it nice and comfortable maybe an inch definitely aren’t going to contact you

[@rafita521]

You can adjust the height of the ride with them

[@swervv2957]

What did u end up getting cause I’m looking for similar style

[@Jaydogg209]

My Tein Advance Zs I ordered leaked out of the box so a second pair sent to me. Same issue with those so I ended up sending both sets back and still haven’t decided on the flex z, Silvers Neo Max or KTuned k1. Really bummed the Advance Z leaked that oil (Check the Wrapping in the box and see if there is oil.)

[@Heeltoe.]

It's been pretty common that some oil is found on the outside of some Tein dampers and people believe the dampers are leaking. However, after consulting with Tein, these cases are not leaks...this is oil from assembly that is residual on the item.

[@Jaydogg209]

@@Heeltoe. that’s what I figured but the seller Redline360 told me they were blown struts so I sent them back. It’s okay though I needed up going with the eBay special Godspeed mono max. I think they are like 30 way adjustable but I always use them on stiffest setting because I’m super low. They are actually really good quality and the shock bodies are aluminum. The teins would have probably rode slightly less harsh with the stock style tophats but whatever. I’m happy, been driving on them hard for about a year now with no issues. Thanks for clarifying that about tein. Keep them parts coming Marcus I appreciate what you do for us.

[@MRMAN-wb1tv]

@@Jaydogg209 I ordered my Flex Z from Redline 360, I've had them for almost a week haven't opened them yet. I think I should check them now 😯

[@Jaydogg209]

@@MRMAN-wb1tv it is probably from the manufacturer like I assumed but I just listened to the seller and took the opportunity to send them back free to avoid them possibly being no good.

[@MRMAN-wb1tv]

@@Jaydogg209 Yeah I read that. I still have to check, but I'll keep it in mind depending on how much I see, if any at all.

[@mastarce]

Do both of them allow damping adjustment at the top? Looks to be the same. Can it be set to low/med/high? Tnx

[@Heeltoe.]

Yes they do both offer 16-level adjustment at the top of the damper.

[@CITRUS--]

@HeeltoeAuto, I was just wondering if you had any advice for me, I'm running a 06 GD wrx sti that (once repaired) will be used for weekend driving only on some bumpy-ish roads and then for some skidpan and light track use. which is the more comfortable option for me? cause I assume the more aggressive performance of the two is relatively similar. thanks

[@Heeltoe.]

Hi, thanks for posting. Honestly we aren't the most familiar enough with your car to give the BEST advice. Our suggestion is that between the Tein lineup, both the SAZ and the FLEX Z are great kits that ride and handle well. Since you believe you will have some track use, we recommend the Flex Z. Email us at [e-mail] if you'd like to order a set!

[@ashy_gee6]

I need some rear Street Basis coilovers only. Do you guys have that option?im really interested.

[@Heeltoe.]

Yeah we can facilitate that for you! Email through the Heeltoe site :)

[@Ice_Tube]

Nice explanation. I have mazda.cx5.2016, what suspension you prefer? No need to be lower or higher, I just need comfort and quiet ride in the city. Zero off road. Am uber driver so most of the time am in side my car, which suspension u prefer please? The car has 123k miles with oem suspension. Thank you.

[@Heeltoe.]

Thanks for watching and for the message! As far as Tein goes, there is only the Street Advance to choose from. It is not designed to be an aggressive suspension. It will lower the car between 1.5-2.0 inches and still be reliable and comfortable with added sport.

[@KJ533]

How are you meant to install the advanced street with no top mount ?

[@florin9868]

with the ones from the car

[@Heeltoe.]

You transfer over the stock mounts from your car, or we can get you new mounts to install.

[@seethruhead7119]

Cmon guys! Preload does not affect suspension stiffness!

[@Heeltoe.]

It does make the car feel firmer, even though it is not increasing the firmness.

[@FlipSideGarage]

Im wanting one for my 2012 TL non awd. Im lookong for the basis tein setup. Does it need special preloading prior to installation or just straight install at stock height and then adjust?

[@Heeltoe.]

Just follow the guidelines in the Tein manual and you will be good to go :) They have all the recommended settings for the springs there for a starting point and you can adjust from there.

[@Clemente4u]

Great Video

[@jacobfunk2883]

If I go with the Flex Zs an lower my car a good amount “stance look” will have to get a camber kit? This is my daily driver so I don’t want to be eating away at my tires.

[@Heeltoe.]

It depends on the sort of car we're talking about. But really the need for a camber kit is independent from what sort of suspension you have. lowering the car adds more camber so it doesn't matter what kit you get, if you go lower and lower you're going to need a camber kit more and more.

[@dannybannds]

what are the differences between the Flex Z upper mount and the Type S one that you offer?

[@Heeltoe.]

Good question! They are functionally very similar, the Tein ones are used when standard straight springs are used, as in on the Flex. The SAZ uses a tapered spring to fit the OEM upper mount.

[@qlsltwo]

I was looking to buy a set of the Tein Flex Z’s for my Acura TL-Type S. Do these come with the preload set from the factory? I have seen conflicting information. Will the Flex Z allow for factory ride height? Thanks in advance!

[@Heeltoe.]

They do come with the preload set but you can also adjust it. Don't overblow the preload being a critical position of adjustment that *must* be set from the factory. It can be moved. The Tein install docs show baseline measurements as well.

[@mervhernandez5265]

So all flex Z regardless the car has the bottom height adjustment?

[@Heeltoe.]

The FLEX adjustment is called "full length" adjustable, and yes that means that all the FLEX are primarily adjusted from the bottom bracket.

[@XxLaMaravish13xX]

@@Heeltoe. so I see the flex extends from the bottom.. does that mean to adjust it... I have to take the whole strut out?

[@Heeltoe.]

@@XxLaMaravish13xX No you don't. You can make small adjustments just taking the wheel off. Larger adjustments may be easier with the lower bolts removed only.

[@KappaCow]

Which option would be a more soft and comfortable ride for a daily driver? looking to lower my car, but keep it as comfortable or more comfortable than stock.

[@Heeltoe.]

I would go with a Street Advance kit in that case. What sort of car do you have?

[@KappaCow]

HeeltoeAuto 2005 TSX

[@Heeltoe.]

@@KappaCow You should consider the Tein SAZ: www.heeltoeauto.com/shock-spring-kit/tein-suspension-street-advance-z-saz-coilover-damper-kit-acura-tsx-2004-08-cl9-ff-gsb48-9uss2-tei.gsb48-9uss2.html

[@KappaCow]

HeeltoeAuto thanks for the help. Also in the TSX’s are you able to adjust the rear coil height with just taking the rear wheel off or do you have to take the whole coil over out?

[@Heeltoe.]

@@KappaCow You don't need to take coilovers out to adjust height. That would sort of defeat the purpose!

[@mccartneystuart]

Could you send me your link for the SAZ on a 05 G35 coupe 6mt? Do you have any experience with this car on the saz? Being the 6mt has the sport suspension, is the saz setup an upgrade from the stock sport suspension that is pretty firm, or was. 90k miles on it and it could do with replacing, thought I'd go coil overs. Any advice and pricing would be appreciated.

[@Heeltoe.]

Tein does not offer the SAZ for the G35 but they do offer the SBZ (same thing, just non-adjustable damping). Here are the SBZ: www.heeltoeauto.com/product.php?productid=204897 . These suspension kits would be considered a mild upgrade over stock, even the sport model.

[@mccartneystuart]

@@Heeltoe. if I did order the setup from you they do offer, do you offer the same accessory parts (top mounts) so I don't have to interchange the parts from my old setup? If you do could you tell me how much that would cost with the added parts already installed? Thanks.

[@Heeltoe.]

@@mccartneystuart I am sorry we do not do the upper mounts and assembly for models other than select Honda and Acura.

[@djsthemetereman]

I wanna lower my Tlx type s but does it change the ride at all, I see you installed tein s springs on yours, & do these installs interfere with Acuras warranty?

[@Heeltoe.]

Lowering the TLX will change the ride height. Yes we have the springs, it is a quality upgrade that will not cause problems but we do suspect that we have voided the warranty on the dampers by installing them.

[@genrock6756]

Nice video, about the height between the two all the way extended are they the same? I need to have the stock height once in a while. Which one should i get between this two. Thanks in advance.

[@Heeltoe.]

For lower lows and higher highs, the Flex Z is much better. You can get it closer to stock height that you could with the SAZ.

[@patrickyume.media12]

Hey man one question. I got a flex z on my 370z. When we were installing it we didn’t touch the preload as it was said on the manual that do not adjust the preload because it was already preloaded from the factory (Tein). Now my car feels bouncy especially on the front even tho its all the way to its stiffest setting. Do you think not changing the preload from the factory is the cause?

[@Heeltoe.]

Is the rear set firm as well? Sometimes you can get the front to settle down if you soften the rear.

[@love2xlllr8]

can i use rear stock top hats on flex z for suabru impreza

[@Heeltoe.]

If you go with the FLEX Z I would suggest using them as they come. Why do otherwise?

[@cypress_ek4]

I’m kind of late, for street use which is better? Street or flex Z?

[@Heeltoe.]

Hey there, never too late to reach out for help! Answer is, BOTH. They are basically the same damper, the Flex Z has a lot more height range flexibility than the SAZ.

[@Zer04100]

I have an Acura RSX 2006... would the street advance be good for a comfortable ride? Don’t want it to be too bouncy.

[@Heeltoe.]

I would say, YES! The SAZ is a great sports suspension balance. It is definitely able to be tuned to a sports balance that will prevent too much float and control body motions while still offering compliance for a great daily ride.

[@AdnanSkillz1234]

can i use top mount from base model tl for my type s?

[@Heeltoe.]

Yes you sure can.

[@AdnanSkillz1234]

@@Heeltoe. awesome! Just got the street advance z today for my 6mt type s. Do you think it’s recommended to get better top mounts ?

[@Heeltoe.]

@@AdnanSkillz1234 You could just reuse the ones in your car now. The Type-S ones are pretty much the best ones you will get.

[@boscokhoo2463]

hi, if one of the flex z parts is faulty, can I just buy tat part? or have to rebuy the whole setup?

[@Heeltoe.]

Yes we can sell the damper tubes individually, as well as many of the other components.

[@raiders559]

Is the flex z squeak problem common? Was leaning towards this set for my 14' accord but this problem is scaring me

[@Heeltoe.]

It's not uncommon to get more noise from aftermarket shocks. There is not a "problem" with these coilovers. If anything there is an issue with the car design that causes more noise to be transmitted to the cabin. Adding performance parts comes with compromises and this is really just one of them. For more on squeaking shocks please read here: www.heeltoeauto.com/blogs/a-note-about-squeaky-shocks.html

[@zzztroper]

I want to change spring rate. Does the height matters?

[@Heeltoe.]

You have one of these kits and want to change the springs? Firmer springs will make the car higher.

[@christopherrocha1043]

Does anyone have an Acura TL Type S??? Any suggestions on which one to get???

[@Heeltoe.]

How much lower than stock do you want your car to be? Street Sport, Performance, or Track use?

[@sloth_7665]

Do you have to use the mounts that come with the flex z or can I take them off and use the OEM?

[@Heeltoe.]

The FLEX Z must use the mounts that come with them.

[@ALDO27936]

How low can i go on my miata NA with the Street Advance Z? Running 15'' Wheels. Great video btw!

[@Heeltoe.]

Thanks for watching! Tein reports a max lowering of about 3" which to us usually means it is good to about 2.5" before you really seriously lose shock travel which ruins the ride and handling. Figure your window of operation will be 1.5" to 2.25" down.

[@dscpat]

the part about preload and spring rate is all wrong, sorry. Preload won't do anything on a linear rated spring.

[@Heeltoe.]

Pardon me. Maybe some clarity is needed. Naturally the rate of the spring will not change by adding preload, but pre-loading the spring does impact the feel of the system. It effectively makes the car feel firmer as if a higher rate spring was installed.

[@Heeltoe.]

I do thank you very much for taking the time to watch and reply!

[@rottenapple8333]

Thank you ‼️✌🏽😎🍻

[@MRMAN-wb1tv]

*I'm noticing different spring rates for different cars. My 04 gs300 was around 6k 4k stock ( I think ), I expected the Flex Z to be around 8k 6k, but they came 12k 10k. Is that normal based on my car model/year?*

[@Heeltoe.]

The aftermarket manufacturers choose the rates they feel suit the car's nature and the goal of the damper kit as a modification. One thing is for sure you cannot judge a damper kit feel and handling on the spring rate alone.

[@MRMAN-wb1tv]

@@Heeltoe. Yeah I'm learning that the spring seems aggressive but with correct damping it's actually a pretty comfortable ride at the factory spring rates of 12k 10k.

[@jcwick0859]

is there no bracket to hold the brake line/hose in place for an integra

[@Heeltoe.]

Different kits have different brackets. The ones in the video don't have those brackets because the cars don't use them.

[@jcwick0859]

@@Heeltoe. dont use the brake line hose? it should because i seen cheaper coilovers equipped with them and these more expensive ones dont? seems like tein went the cheap route and are marking these up pricey becuz of the name

[@Heeltoe.]

@@jcwick0859 They put brake line brackets on cars that use them. Not all cars use them. For example, the TSX or TL which are the ones I am holding. The brackets for the brake lines are not on the shocks. Not every car has the brackets on the shock, you know. Only some do.

[@fernando2390001]

Can you still get stock height

[@Heeltoe.]

These systems are designed to lower the car. The FLEX Z can go higher than the SAZ, but with either I think you will be best to accept a 1" drop minimum.

[@topperharlee718]

I was gonna order the Flex Z for my 08 Accord Coupe V6, then I noticed the price jump...yikes!

[@Heeltoe.]

We approved your quote that you sent over, the pricing was actually wrong on the website, caused by some new software that we uploaded right when you were shopping. Should be fixed now!

[@topperharlee718]

@@Heeltoe. Ordered a set of Flex Z, thanks!

[@XxLaMaravish13xX]

I have an 07 Acura type s.... is it better to have the tein top hat or the reinforced type S bushing?

[@Heeltoe.]

They function basically the same, but the Tein one accomodates more universal springs. That's why the FLEX comes with the Tein upper mount. The Street Advance uses a factory mount.

[@IAmSoHoodBitchBankay]

I’m about to order the SAZ but my rsx has blown k-sports, could I use their top mounts or I really need to get the OEM? When I bought the car it already had the k-sports so I don’t have the oem top mounts.

[@robbym3542]

I have flex z for my Acura TL and I can’t get the coil overs to match all of the suggested lengths such as long he a,b,c and d length. I can get one to match up but not another. It’s impossible to get them to all match up

[@Heeltoe.]

The most important one is the spring height, and then the space of threads in between the spring seat collar and the lower bracket collar. No need to try messing around to get them all the same.

[@robbym3542]

Could I just throw them in and adjust just the ride height only or do I have to mess with the preload

[@Heeltoe.]

@@robbym3542 You probably don't need to play with the preload, no. But you will want to set the height at the lower bracket.

[@robbym3542]

HeeltoeAuto that’s what I did and the car was too low so I raised it so I only dropped the car about 1 inch but the car is very bouncy in the front and it caused me to hit the subframe on the road from just a simple dip in the road. I also have the dampers set to the suggested stiffness.

[@Heeltoe.]

Firm up the dampers in the front. Also you can add some preload in the front if you feel like you need to limit the travel.

[@codybersicc7939]

what is the best coil for this car? money is not an issue

[@swervv2957]

Kw, bc, f500, d-2...

[@codybersicc7939]

@@swervv2957 wrong

[@sold1million]

Just got street advance. Sucks doesn't drop ass much. Useless & bouncy when fully maxed dropped Any suggestions?

[@Heeltoe.]

The Street Advance coilovers work great at 1.25-2.0" lowering heights. If you want to lower more, the Tein Flex Z is much better for that.

[@sold1million]

@@Heeltoe. late response. I ended up junking them

[@Heeltoe.]

@@sold1million if they weren't the right kit for you that's understandable that you wouldn't like them. How you like what you have now!

[@DebtOfLife]

I bought the street advance z for my 17 camry se.. i wanna drop the front 1.5 and the rear 2. Will there be any issues or should i be ok?

[@Heeltoe.]

Yes the SAZ should handle a 1.5-2" lowering just fine.

[@DebtOfLife]

Ok great thank you. I been hearin alot of mixed reviews on these coilivers. Was getting cold feet and wanted to cancel my order... but im gunna keep em

[@Heeltoe.]

@@DebtOfLife Mixed reviews are all over...the problem is you never really know how useful those reviews really are.

[@geminikitty10]

14 civic ex coupe daily driver looking to take away wheel gap..maybe 2in or so..what could do you recommend? I’m looking at so many I’m going crazy lol

[@Heeltoe.]

Either kit the SAZ or Flex Z we discuss here will be great! The SAZ is a little better for a little more compliance/comfort where the flex Z will offer a little more sport. But both will handle well and be suitable for everyday driving. Use coupon code "HTinyourcorner" on heeltoeauto.com for a discount!

[@geminikitty10]

@@Heeltoe. what are your thoughts on Godspeed and truhart?

[@Heeltoe.]

@@geminikitty10 I don't really know because I haven't used them. I'm sorry I didn't have an ability to give much meaningful info. other than I know that both are Taiwan private label brands and don't make their own parts.

[@geminikitty10]

@@Heeltoe. no it’s ok lol I might get the street advance but kinda don’t want to use oem top hats..or does it not matter? A shop by me has the advances for 810

[@Heeltoe.]

@@geminikitty10 nothing wrong at all with the factory upper mounts, they really don't wear out over time and they work really very well. I can definitely understand wanting to get all new pieces which is why we offer an option to do that on our website. You might double check our listings on Heeltoe to compare! Lmk if you need help can call or text 949-295-1668 - Marcus

[@mynewhaircut]

How do you think they compare to the old ss coil overs?

[@Heeltoe.]

The SAZ is the latest in line following the SS and SA. It's basically the new version of the SS.

[@mynewhaircut]

Thanks for the quick reply. I had the ss coils for a while snd really liked them. I'm wondering if I should go with the flex z this time. Wasn't sure if they ride about the same and are just as quiet as the ss coils.

[@XxLaMaravish13xX]

Can the flex z pur your car back to stock height or atleast close? I have the street advance and it's like 2 inches lower than stock height on the highest setting.

[@swervv2957]

That’s what I want to kno? Do u recommend for a G37s owner? I’m considering but get mixed reviews, I just want stock height with with stock comfort for the most part.

[@XxLaMaravish13xX]

@@swervv2957 i have the street advance and yet have been able to find an answer to my question but I can say mines does not bring it back to stock height. And it sucks cause i live in New England. So when it snows.. its a lot of stress. I wouldnt recommend mined. I do see pics where others seem taller but no one wants to confirm it lol they're all worried about how low it can get lol like if you buy coils .. it'll get you low for sure. Whats not sure it how high it gets at the highest point

[@swervv2957]

XxLaMaravish13xX exactly! Lol instead of caring so much to go low I actually just want to stay at stock height. But on another note, how is the ride, comfort wise? Do u say there gd purchase? Any noise when driving?

[@Heeltoe.]

My #1 suggestion for stock height is to use stock replacement parts. The FLEX Z will go higher than the SAZ for sure, but plan on at least 1" of lowering even at the higher settings.

[@spykiller189]

I bought street advance z coils for an accord cg5. I want to make the front go lower but the spring starts to move around on the coil when it is jacked up. Is that normal or is there someway to prevent that?

[@Heeltoe.]

That's actually normal. Just make sure the spring seats properly when you put the car on the ground.

[@spykiller189]

Thank you so much, I have been searching around but was never able to find an exact answer. One more questions is my front coils tend to sound like they grind/squeak and my right clunks going over speed bumps at low speeds. Could it be bushings and a worn out lower ball join?@@Heeltoe.

[@Heeltoe.]

@@spykiller189 The sound is likely something really different. It could be a number of factors that are possible. It's not something we can speculate on unless we can get under the car and check ourselves.

[@spykiller189]

HeeltoeAuto Oh okay I understand. One question I forgot to ask earlier about the coilovers is that if I lower it to the point where the springs are loose when jacked up. Will the ride quality get worse such as get bouncier?

[@Heeltoe.]

@@spykiller189 Yes it will, but not because the springs are loose. It would be because you reduce the stroke before the bump stop is hit and that causes you to bottom out more.

[@jameslovesboba]

Will the ride be more comfortable with the flex z because the oem top mounts have more rubber?

[@Heeltoe.]

The Tein bushings are a little firmer but in either of these systems the dampers are pretty compliant so the upper mount firmness does not really impact the ride much.

[@tonycervantes4816]

Is of Same installation for 4th gen Nissan maxima bro ???

[@tezzasaurusrex]

Preload does not increase spring rate sorry.

[@zjedinite]

I got a 2009 Civic. it’s funny how everyone wants to drop their car and I want to lift mine. Guessing these are not for me. Anyone know how to lift 1 1/2” in a safe way. It’s the wife’s car so it needs to be SAFE. Thanks in advance 🤙🏽

[@Imissthefuhrer]

Easy, flex z = made in Japan. Advance z = made in China.

[@Heeltoe.]

That's one difference yeah. Doesn't tell the whole story though.