Mountain Pass Comfort Adjustable Coilover Review - Comprehensive

[@toddshreve]

Your narration is really good. Like we are inside your head with you. This is really well done!

[@ireckon7351]

Thanks for this video dude, it’s actually really well made and helpful!

[@kedar8000]

That was simply fantastic. I appreciate call the effort you put into this video! 👍🏿

[@sebastianbivona5808]

Great video mate seriously outstanding work .Am here in Sydney, Australia & youve just changed my mind on whether i was going to get coilovers or not.Well done...

[@mmark300]

Thanks so much!

[@eddiecheung4385]

Great job ! Cannot imagine how hard it was to film it !

[@mmark300]

Thanks for watching! Filming does take a lot of time but, for me, editing takes even longer. I have a number videos filmed right now waiting to be put together...

[@eddiecheung4385]

@@mmark300 cannot wait to see your videos again !

[@everythingevil76]

I bought a used Model 3 that had the mountain pass coilovers already installed. That’s how I came by your video. Was curious about them. Awesome video!

[@mmark300]

Thanks! Unless you drove a model 3 without the MPP's, you don't even know how much better you have it :)

[@racecrashrepeat]

Sometimes I hate KZbin so much. Mark where the hell have you been. This is the single best model 3 suspension video on KZbin. This is EXACTLY what I was looking for. I absolutely love the small details you did including the body roll video from outside. Fantastic. Please do us a favour. Find another LR and do the same video comparing stock and the coilovers. I've been reading so much and was all sold on the springs. But now I know where I'm going. I'm getting my Model 3 P in a month and am doing all the research now. I basically do not want to affect the ride compared to stock. Ive had a Lexus with coilovers and also got an Evo with ohlins and I do love it. But for the model 3 I actually will not go for a harsher ride but would like to get it to sit right. These seem like the only real solution for this I presume? So these compared to the stock model 3 performance should he a good upgrade in that regard you think? Thank you again and please keep them coming.

[@mmark300]

Hey, Thanks Piotr! Maybe this summer I'll do a comparison with a stock model 3 and/or a Perf model. Yes, so far this is the best option for lowering your tesla without making the ride more harsh. Setting the dampers makes a huge difference with the MPPs. I will never buy just lowering springs for a car again... I haven't been in a P3 so I don't really know how the ride compares but I'm guessing you will be able to get a much better handling suspension with the same level of firmness. If you're up for it, check out my install video - also very detailed.

[@racecrashrepeat]

@@mmark300 Thank you for the detailed reply. Actually a great comparison would be your car and a M3P as this would show what these can do compared to Teslas performance option. Price wise obviously the LR with MPP coilovers is much cheaper and LR is already a very quick street car for most people. Definetly watching all of your videos. Thank you again.

[@RicViperskylogs]

Great review! Looks great. I just ordered the Ohlins road and track setup for my MYP. Looking forward!

[@rrrttt0113]

Instant fan! I have the Sport Coilovers that I have been waiting to install.... this and the installation video are very helpful!

[@mmark300]

Awesome, thanks!

[@sebastianlohmann7544]

did 35mm springs on mine and 20mm spacer in the back and 10mm up front. and i really really like the look with the spacers!

[@RidgesPhoto]

Great review. I'm waiting for my set to arrive. When you tried a full comfort setting, was the ride softer than stock (even though it had body lean)?

[@mmark300]

What I think makes ride comparisons difficult is the fact that the stock springs are variable rate so can feel more comfortable/soft when driving slowly and hitting very small bumps, but then become much more uncomfortable as the car hits larger bumps or when the suspension is compressed for other reasons (many people in the car, cornering, etc). The reason for this is that the stock springs start to depend on the bumps stops, which increase the effective spring rate very rapidly. Under all conditions, the MPP suspension will feel much better overall. At full comfort it may feel very slightly more firm/sporty than stock with very small bumps, but it will feel so much better with larger bumps and when more loaded. The initial turn-in and responsiveness is so much better - I couldn't believe how noticeable it was and I was barely moving the wheel at low speeds. Then the cornering ability is also drastically improved. And finally, the car looks SO much better.

[@mattbriggs7319]

Amazing video! What did settings for comp/reb did you end up running for daily driving?

[@mmark300]

Thanks! I think at 10/10 (comp/rebound) front and rear. With the cold winter temps they are always more noticeably stiff.

[@RetroExhibitCollective]

Awesome vid man, thank yiu for going over everything I plan on lowering mine as well. I want to do air suspension but seems too expensive and a lot of work that I personally don’t get comfortable doing. Coils seems the best solution

[@mmark300]

Thanks! Air suspension is a lot more work - You have to REALLY want it.

[@kevj9928]

Excellent Mark!! Fantastic review from a layman’s perspective. The two ride heights really is something most of will try…how much is too much? type of thing. Tons of fun and the slalom comparisons were equally helpful. It is my understanding now that the lower ride height will require a realignment adjusting toe and anything else?

[@mmark300]

Thanks - I may do a video on getting alignments done whether your Tesla has been lowered or not. After 15k miles one of my tires was way more worn on the inside than the others. Turned out my right front toe was at -0.32. This is WAY off (should be close to zero). My car was stock, no accidents, etc. After the new suspension I only had my alignment done once, after the second lowering. They adjusted the front toe slightly, but it was not that far off (maybe -0.03). Front camber can't really be adjusted much, but there is some play in the stock mounting bolt openings that can be used to help a bit. My front camber was -0.08 (very close to the limit at -1.0), which is not bad considering how much lower the car is. Rear camber was also still in spec, but I told them to adjust it to -1.4 (MPP recommended) only because I spent good money on the adjustable rear camber arms! :)

[@snwahs]

First, fantastic video and appreciate all of the detail. Unfortunately I arrived here as I am having issues with my M3P and the MP Comfort Coilovers (non-adjustable) and driving here in Chicago. After install and admittedly a rather low ride height (665mm ground to fender) the ride quality is just terrible. Driving the car on the highway (90/290, etc.) consistently bounces and I feel like I am a bit of a bobble head. As mine are non adjustable, is the low ride height the issue? Will setting the perch 20mm below the MP recommendation improve ride quality? About to give up and go back to stock. Any tips would be helpful.

[@mmark300]

Thanks! What do you mean by bouncy? Usually bouncy means that the dampers are shot and the car keeps bouncing from uncontrolled springs. Assuming the dampers aren't bad, I don't think changing the ride height would change the ride quality much because the springs are not variable rate, they should be constant. A couple of things you have to keep in mind - one is that all suspensions and tires will feel more stiff when the temperature drops (winter) and the damper fluid thickens. And then check your tire pressure - the Tesla recommended 42 lbs makes a much more rough ride. Are you on 19's or 20's? 20's will always feel rough... Your only real option would be to try to raise the suspension back up and see how it feels. The next option would be to try the adjustable version of these coilovers. Setting the dampers to soft makes a very noticeable difference in ride quality.

[@ecesign1]

Hi Mark, appreciate the video, thanks for putting it up. Did you see Tein now also has a Tesla coilover kit? Any thought on the Flex Z with electronics adjustments? KW is a superior product but adjustments look quite inconvenient.

[@YossarianHelmet]

Mark, again, great video. Were you able to determine, on the front and rear, what a turn or each mm of movement in adjustments equal to in ride height? I started at 69F and 22R and although the car looks great, I think it could stand to come down another 1/4-1/2”.

[@mmark300]

Thanks! I don't know how many mm each turn represents but each mm of movement of the perch should equate to one mm of overall height adjustment of the car. Keep in mind that the suspension will settle over time.

[@frankp.5773]

New subscriber. Have you noticed any unusual tire wear now that you’ve driven on coils for some time? Also, I am only looking for a mild drop and so I am considering the comfort coil over (non-adjustable) over the adjustable. Is the dampening factor that much more worth it, in your opinion? I am a total newbie for suspension work. Read somewhere that adding the camber arms were important for tire wear, so I am considering MPP’s rear camber arms as well. Thanks!

[@mmark300]

Thanks for subscribing! No additional tire wear, but I had my alignment checked after I installed them. Did you see that part of the video? (maybe it was on my install video, check that). I didn't need the camber arms even after lowering a lot, so I really wouldn't recommend buying them unless there's some strange issue or you're tracking the car. I like being able to adjust the dampening but it's not a quick adjustment and I usually end up leaving it alone for months. If you live in a northern area you may want the ability to adjust to soften in the winter as the colder makes it feel much more firm. I also wanted full stainless which only the adjustable has.

[@josephpark5770]

Hi Mark! First thank you for your videos! I was able to install my comfort coilovers this weekend by watching your video. After watching your videos, I decided to lower my car by 10mm more than recommended settings compared to your 20mm. I’m still scraping on speed bumps. The front bumper doesn’t scrape but the middle of the car bottoms out on the speed bumps. Do you think this will ruin the battery or anything below? Did you raise your car up a little bit? Or still at 20mm lower?

[@mmark300]

Awesome, glad my videos helped! I still have mine 20mm lower than suggested and haven't bottomed on anything as long as I go slowly. Are you rolling over bumps too quickly? Aside from the actual armor, there are three steel support rails under the battery box that would first hit anything like a fairly even speed bump. Look underneath and see what is hitting and how bad. If anything is getting more than surface damage, I would probably raise it up... The only other major concern is if you hit anything like a fairly large rock. The front of the battery pack, underneath the front cover, contains a few coolant inlets that could be damaged. Breaking one of the lines would be bad, but breaking one of the inlet connectors would be really really bad. From what I understand these connectors are part of the battery box and can't be individually replaced, meaning that the whole battery would need to be replaced. I was actually working on my own aluminum connector protectors, but I decided to just buy the aluminum skid plate that mountain pass sells. It feels like good insurance...

[@josephpark5770]

@@mmark300 Thanks for the advice Mark! I spoke with Jesse and learned today that the recommended settings for their Comfort Coilovers is to get our cars lowered to 128.5mm measured from the floor to the battery. OEM performance models measure at 145mm from floor to battery. Initially when I installed my coilovers last weekend, I thought following recommended settings was going to lower my car just to around Performance models, so I decided to go 10 mm lower. Now my car sits 118 mm from floor to battery. After reading his email, decided to raise my car up to recommended settings which is still lower than performance models.

[@mmark300]

@@josephpark5770 Ah, ok. I wasn't sure what height the performance models are when I made the video. It's hard to tell just by looking at another Tesla when they have different wheels and tires. The same suspension height settings will yield different battery heights if the overall tire diameters are different, especially when the gap between the tire and fenderwell will also be smaller.

[@MitchLin-q1t]

Just curious, what is your finger gap between the fender and wheels after the additional drop and before. Thinking about going a little lower after installing the coilovers.

[@mmark300]

I really don't remember the before, but if you think you're going to drop it only a little bit more, I would wait until it settles a bit. Seems like it dropped another 1/4 inch or so a few weeks after I installed it.

[@MitchLin-q1t]

@@mmark300 Thanks for the reply. Just wanted to check, you started with 110mm and then went down to 90mm front and back?

[@mmark300]

Yes, I think those are the original numbers. But I just re-measured and am very low. Measuring from the ground to the lowest jacking point is only 83mm front and 77mm rear. Keep in mind these are the very lowest points, I have new 19" wheels/tires that are slightly smaller than oem 18" and my motofloor garage floor is probably flexing. This is really too low and I need to raise the back a bit

[@Lse380]

Thanks helped alot. Cant adjust my rear in mounted position as well🥲

[@ran3532]

Great video! Any idea how thick the metal undercarriage is from the battery? Like will scraping speed bumps damage your battery?

[@mmark300]

I know the batteries were protected by 1/4 in ballistic grade Aluminum on the model S so I would think the model 3 would be the same. Then, if you look at the underside, there are 3 raised rails that would scrape first if it was something like a speed bump.

[@davn7723]

Can you adjust the rear coils without removing the whole thing?

[@mmark300]

If you see at 22:30, I was having a hard time making the adjustment. It can probably be done but seemed easier to just remove it.

[@LuisMartinsmw]

This is so awesome. About to pull the trigger on buying this coilover set, but not thinking about getting the adjustable arms too. Will I be missing too much?

[@mmark300]

You won't regret it! Mine is lower than average and I didn't need the adjustable arms, so I wouldn't worry about them unless your alignment ends up way out.

[@LuisMartinsmw]

@@mmark300 Oh wow! I'm surprised your car didn't needed it, given how slammed it is. I ended getting both the coilovers kit and the arms to get the bundle discount. Excited to see how it will work out.MPP should give you a referral or something, your video convinced me to go ahead.

[@PaulBodyBuilder]

U should raise it for snow off road pot holes Wyndmoor PA

[@mtba102]

Nice! First mod I’m going to buy for my M3LR once it arrives (this month hopefully). I was debating between wheels or coils first but you sold me on the coils.

[@mmark300]

Good call! Check out my wheel spacer video - it may make you put off your new wheels even longer...

[@mamagochi]

great coverage, answer all the FAQ that I have

[@mmark300]

Awesome! The only thing that would make this comment even better is if you subscribed!

[@iamdjphox8790]

I have watched both your videos on the MPP coil overs. Great job so far. I’m looking to get a set of MPP or the KW. I know that The MPP is made from the KW but would like to know “what exactly” did MPP do differently to make theirs better than the KW coil overs? I have KWs HAS setup on my BMW M3 and love them so I’m inclined to stay with KW for my Tesla Model 3. Thanks 🙏🏾

[@mmark300]

Awesome, thanks! I hope you subscribed. I'm pretty sure KW does not have the comfort kit with adjustable compression and rebound like the MPP kit does. Then MPP specified different spring and valving rates for their kits. MPP has a video (tesla model 3 coilover development) showing them using testing equipment in order to come up with specs for KW.

[@mmark300]

Also, stay tuned for my next video on wheel spacers. The car looks even better! I'll probably hold off on getting new wheels now...

[@iamdjphox8790]

@@mmark300 oh yes. I am subscribed. I have been for a couple weeks now. You are the only one I have seen that gives a down to earth review on the coil overs. So what you are telling me is that KW came out with their setup first then MPP came out with the “modified” version based off KW’s setup? Is this accurate? Can’t wait for your spacer setup. This is the missing piece to what I need to know.

[@mmark300]

@@iamdjphox8790 Cool. Yes, that has been my understanding after speaking with Jesse from MPP and watching this video: kzbin.info/www/bejne/gmeWp2CCgtmaqZo

[@iamdjphox8790]

@@mmark300 yes I have watched that video 3 times now. Is there any other videos that you recommend?

[@joshcarrillo290]

Great video ! So are you 1.5 inches lower than stock now?

[@mmark300]

Thanks! It's 2 inches or even a little lower than stock now.

[@blazekproductions6525]

When you installed this kit, did you have to do anything with alignment? Also does the Model 3 have auto dampening in their stock suspension and would anything be messed up with that disconnected if so? I have a dual motor long range and am looking the slam it with coilovers

[@mmark300]

Yes, you should watch the install video - kzbin.info/www/bejne/hXOQk6pogJx3o7M There is no auto-dampening to worry about. The stock springs are variable rate, no big deal.

[@airwalkyt7767]

Lol used to go to Calvary church. Nice review.

[@mmark300]

Cool, thanks!

[@mattbriggs7319]

Did lowering in in the rear effect the alignment when you removed those two large bolts in the rear? Thanks!

[@mmark300]

No, the alignment wasn't affected much at all even after lowering it even further. I have a followup video on that.

[@mattbriggs7319]

Hey thanks for all the help Mark. I actually didn't have to remove the swing arms bolts, I just had to make sure the front was also jacked up on whatever side I was working on. I looked through your AWESOME videos and didn't see another one regarding your suspension? Could you please throw a link out? Thanks so much for all you do and have a grrreat day!

[@mmark300]

@@mattbriggs7319 You're welcome! Sorry, I didn't mean to say that I had a video just on the suspension. I meant that I discussed my alignment and getting the car aligned.

[@MrJimmyparky]

Have you ever considered Ohlins DFV for tesla? Also, has MPP improved with small bumps? I just hate how My 2020 Accord is more comfortable going over small bumps than my Model Y.

[@mmark300]

No, mainly bc these are based on KW, which is highly reputable and MPP has great support. The suspension may be better on small bumps if it's set full soft, but in general I'm not sure it's any better. One of the biggest factors for small bumps is that the tires are set to 40+ psi where as your Honda is probably 32. Lower your psi and call me in the morning. Haha

[@davn7723]

great detail info! what damper setting are you using now?

[@mmark300]

Thanks - After the slalom I left the settings on full firm for a few days then backed off only 10 instead of 12. Once you drive around so rough, going back to anything close to medium feels way more comfortable. I also tried full comfort for a couple days but missed the better handling.

[@davn7723]

@@mmark300 10 meaning, 10 top and bottom? 10/10? and for front and rear ?

[@mmark300]

@@davn7723 Yes, 10/10 front and rear. I am planning to experiment with 12/10 (comp/rebound), front and rear, as they recommend this for the sports coilovers, just to see how it feels.

[@davn7723]

@@mmark300 yea i was thinking of trying that too! Thanks! 🤙

[@eddie408209]

What settings did you end up sticking with?

[@mmark300]

It's been a while, but I think a little more on the stiff side.

[@thomasbihn]

When you adjust the height, can it be set to max height? I want to have a local garage install it in my 18 M3P, but they barely can get the lift under with stock height. Can the height be set to the same as factory or higher? My thought is I'll have them set the height to maximum (hopefully as high or higher than factory) and then get it home, jack up with my low profile jack, remove the wheel and lower it with the adjustment then. If I need to have any work done by them, I'd have to repeat the process, but would at least be able to still have the local garage do it rather than drive an hour away and pay more.

[@mmark300]

I think so but not positive. Factory height is not low so not sure why that garage shouldn't be having an issue. And they should be able to compensate by driving up on something to get the lift underneath. I'm always a little leary of shops that can't figure out some basic issues like this. Maybe this place can't bc of how their lift operates, but still...

[@thomasbihn]

@@mmark300 It amazes me how many shops I call and the simple mentioning of Teslas evokes a very fast "No, we don't work on Teslas." I did manage to find a couple garages near me that are willing to give me an estimate. I realized I could just call MPP and ask and they are very responsive. MPP recommends getting an alignment after adjusting the height. I'm still waiting to hear back on what the cost will be, but the spring tensioner need, the time it will take, and the need for an alignment have me planning to use a shop to do it.

[@knight2386]

I am getting closer and closer to pulling the trigger on these coilovers for my m3p. One thing that concerns me is damaging the underbody of the car - specifically the battery - due to the lower clearance. Any thoughts on this?

[@mmark300]

A major concern is if you hit anything like a fairly large rock. The front of the battery pack, underneath the front cover, contains a few coolant inlets that could be damaged. Breaking one of the lines would be bad, but breaking one of the inlet connectors would be really really bad. From what I understand these connectors are part of the battery box and can't be individually replaced, meaning that the whole battery would need to be replaced. Of course, Rich Rebuilds recently did a fix for this exact issue, but Tesla will not do this repair (kzbin.info/www/bejne/rIe2qGaBiMqpe8U). I was actually working on my own aluminum connector protectors, but I decided to just buy the aluminum skid plate that mountain pass sells. It feels like good insurance... I'll have a video on this also.

[@knight2386]

@@mmark300 thank you for your reply! I didn't realize MPP sells a skid plate. That sounds like a great compromise.

[@JPoon808]

What is your settings on full comfort? Can you set the rebound beyond 14 clicks?

[@mmark300]

For initial settings on the AWD comfort kit, MPP recommends 12 back from full stiff (+) on all compression and rebound no matter how many total clicks there are. For full comfort I just dialed compression and rebound all the way down (-). All of the dials seem to have a different number of clicks, between 19 and 22, if I remember correctly.

[@JPoon808]

@@mmark300 ah okay. Model Y MPP is probably built different. On the rebound settings (Fronts) I couldn’t go beyond 14 click from stiff. Pretty bum’d out that you have to take off the nuts on rear suspension to adjust height. I was hoping that I wouldn’t have to do that.

[@mmark300]

@@JPoon808 I know, the ride height adjustment is too much work overall. Air ride height adjustment would be the ultimate setup.

[@4ehano]

@@JPoon808 I drill a small 3/16" hole, directly into the plastic fronk cover, just above the top C/O mount. I also drill out the rubber dust cover about 3/8". I also purchased a 2mm long shaft hex wrench. Now if I want/need to adjust the compression, I simply open the fronk, install the hex wrench thru the hole and make the adjustments as needed! Easy peezy!

[@mtba102]

I asked mpp about ride height of LR with the coilovers vs performance on stock suspension, and they told me that the coilovers on their maximum height will give the LR the same ride height as the stock performance (1cm of drop)

[@mmark300]

Good info, thanks.

[@ginzero]

I was considering springs, but looking into these now. Any new updates or thoughts on these coil overs?

[@mmark300]

Full adjustability in height and damper settings are what make this coilover kit SO much better than just springs. Twice in my life I lowered my cars with just springs, regretted both decisions and switched to adjustable coilovers. I finally learned and went right to coilovers for the Tesla.

[@ginzero]

@@mmark300 Thanks for the quick replies! I just got my Model 3 two weeks ago and wheel gaps are killing me. Subbed!

[@mmark300]

@@ginzero If you have the 18's check out my wheel spacer video - must have!

[@frankdelao4067]

How is the Mountain Pass suspension over speed bumps and up and down driveways? Thanks in advance.

[@mmark300]

I have a whole section on that starting at 38:45, but it ultimately depends on how low you set the car.

[@gurupurkha]

Lowering a car does not automatically improve suspension performance in the area of comfort.

[@antibrunch]

How's daily driving been with 6 clicks stiffer?

[@mmark300]

Very Noticeably stiffer, of course, haha. It's something that you can get used pretty easily, though, and it's worth it if you like a better handling car. If the little bumps bother you, drop the tire pressure.

[@lubsey]

Lowering the car for looks. No thanks.

[@mmark300]

Either way the car's getting lowered, so pick your reason :)

[@deanprater12]

My man do you still have and enjoy these adjustable coil overs? I’m about to purchase these and I’m trying to get a 2inch drop on model 3 performance. Any info would be appreciated

[@mmark300]

Yep, still enjoying them. Only complaint is that I wish they were easier/ quicker to adjust. Other than that no issues.

[@deanprater12]

I appreciate the quick response 😎