Best Q50 / G37 / 370z Test Pipes and High Flow Cats | My Recommendations!!

Here are some of my recommendations in terms of brands for Test Pipes and High Flow Cats for the VQ37 platform.
Tein S Tech Lowering Spring GIVEAWAY: • Q50 Lowering Spring GI...
SCS Catback Video: • SCS Custom Exhaust EVE...
z1 non-resonated: www.z1motorsports.com/exhaust...
Art Pipes: www.z1motorsports.com/exhaust...
FI Non-Resonated: www.z1motorsports.com/exhaust...
ISR Resonated Test Pipes: conceptzperformance.com/isr-p...
Berk High Flow Cats: conceptzperformance.com/berk-...
Berk Resonated Test Pipes: berktechnology.com/product/37...
My Favorite Things: www.amazon.com/shop/speedcult...
Speed Merch: teespring.com/stores/speed-cu...

[@SpeedCultureStudios]

There are a number of manufacturers to choose from when it comes to HFCs and test pipes. I’ve selected a few that are the best combination of quality and price. Hope this vid is helpful!

[@isaacjimenez1831]

I recommend fi hfc or rhfc

[@SpeedCultureStudios]

@@isaacjimenez1831 whatever your preference is. Test pipes are not street legal. HFCs are a good option if you can pass inspection with them

[@omarstilllives4188]

Will the isr test pipes you showed in the video fit my 2015 q50 3.7 awd?

[@SpeedCultureStudios]

@@omarstilllives4188 yes they should. Only ones that don’t fit awd are the ones with the big resonators to the side

[@ericvaliente4091]

I really enjoy my Z1 HFCs. What that sets them apart from the berks is that they come with a j-extension welded on and their catalytic converter has 100 cells per inch vs Berks 200 cells per inch. This allows slightly more flow.

[@SpeedCultureStudios]

Good points!

[@erikdyke3123]

Thanks for that awesome info.

[@JamesMillianoes]

q50 or g37

[@cblack9369]

I honestly went with motordyne HFCs. Nobody seems to have em, and i thought I’d go for em for scientific purposes. Can’t wait to pair it with the full exhaust.

[@erikdyke3123]

Please post a video/sound clip when you get everything installed, Motordyne is awesome just expensive. I went with Z1 HFC and they are expensive too but I really like them, check engine...yet

[@therealyousef]

For anyone looking for a subtle sound, a kinetix hfc with a stillen catback. No check engine light either

[@Go0ofygoober]

How are those hfc holding up?

[@therealyousef]

@@Go0ofygoober sold my q50 last year but was good

[@69BigLou]

Great video! I have borla shorty headerss going in going into ART pipes feeding into Stillwn true dual cat back in my 350Z it's barely louder than stock at highway speeds. When I punch it has a good growl. Quieter than most setups bevasue i like heari g the Stillen blower mostly🤪

[@SpeedCultureStudios]

Very nice!

[@bsilva602]

I’ve got a modified wrx invidia axle back on my q, sounds deep but not loud, no rasp but very strong, planning on adding a Megan y pipe , test pipes and perhaps the resonators from the SCS setup so it really opens up, I’ll follow up on how it sounds

[@newthings5215]

What what did you put in it ? I Js put nvidia gemine in my q50 and want a little me more of sound but in a safe way

[@palerider4629]

Between kinetix and aam resonated hfc, which is better with stock exhaust?

[@DanielSanchez-er4et]

I bought some resonated Berk test pipes. Can’t wait to get them installed this month and then go with your exhaust set up

[@SpeedCultureStudios]

Hell yeah!

[@dwad9162]

Yo I bought mine in April they still haven’t came did yours?

[@DanielSanchez-er4et]

@@dwad9162 yeah mine came in awhile ago but took about 2 months

[@thade6130]

@@DanielSanchez-er4et is your exhaust set up done I was thinking about getting berm test pipes too

[@DanielSanchez-er4et]

@@thade6130 yeah it sounds beautiful😩 a great setup

[@kmc4747]

I missed this video glad I found it

[@SpeedCultureStudios]

I’m glad too!!

[@2shorTt_]

Hello I’ve got a g37xS got my intakes done, and now I’m getting shockwave exhaust system, art down pipes are not available for me since my vehicle is AWD can you recommend something else?

[@bn4241]

Motordyne for sure. I have a set of their HFC on my 3.7 as well.

[@cblack9369]

Thought i was the only one who had em. No vids anywhere. Lol.

[@briscoe186]

I have it on my 3.7 with invidia exhaust but I have an annoying hissing sound

[@roberttinoco4227]

Beem looking for video on motordyne hfc cant find any reviews. Whats your thoughts on them are they worth the price and whats the difference from the other brands?

[@kev_g37x]

I have a motordyne catback with FI resonatedtest pipes no drone or rasp at all

[@saved1777]

Here in vegas the cel will fail u ,berk test pipes with cel fix or high flow cats will pass smog ?it's a OBII state

[@DvrvinJr]

I have Fast intentions HFC, with Motordyne exhaust and it sounds amazing. I will be getting admin tuned with this setup to see what kind of gains i get also with some drop ins

[@SpeedCultureStudios]

You'll see some decent gains. If rwd, you'll likely end up in that 330wheel range

[@DvrvinJr]

@@SpeedCultureStudios im awd. People recommended me to get test pipes for more gains, but i dont like rasp so ima stay with hfc, i hope i can get some flames with the hfc since they can restricted alot of things

[@SpeedCultureStudios]

@@DvrvinJr you might get some small flames but that will kill your cats pretty fast. You won’t have rasp with test pipes if you have the proper catback

[@DvrvinJr]

@@SpeedCultureStudios would i get more flames with res or non res test pipes?

[@SpeedCultureStudios]

@@DvrvinJr no difference

[@JustnPage]

ARK Exhaust on now, ordered ART Pipes on backorder until 4/30. Can’t wait to get them on and tune this 2015 Q50s 🤪 I blame freshhkickks

[@SpeedCultureStudios]

Should be a nice setup!

[@AlejandroFlores-cp5zi]

I was trying to do this but unfortunately I guess I can’t do art pipes with awd

[@JustnPage]

@@AlejandroFlores-cp5zi I was reading that but couldn’t find out why. Wonder if you disconnect the awd 🤔

[@thade6130]

@@AlejandroFlores-cp5zi damn😭

[@bimmerfeen]

@@AlejandroFlores-cp5zi you cant???

[@everythingrandom7142]

If I run a muffler delete and test pipes do I need a tune? Love the channel man so helpful

[@SpeedCultureStudios]

You’ll want a tune with test pipes. If muffler delete only then no

[@TrueRedNatioNe4]

I had the stillen 3.7l catback and I'm returning it cause paired with berk HFC it is raspy. It was also defective, which is why they are accepting the return. I am getting the Ark grip now.

[@erikdyke3123]

Do the SCS exhaust

[@joseg5913]

If your still waiting on the catback due to back order MAPerformance has them in stock got mine in 2 days

[@Qfishtail]

What are good test pipes for stillen catback?

[@129thst]

I just ordered the art pipes and I’m going with the ark exhaust I’ve seen sound clips of the set up it doesn’t sound too bad

[@faduhfade77]

I been waiting for my ART pipes since December

[@129thst]

I’m on back order too 🥲

[@joseg5913]

@@faduhfade77 what website did you order from? Ordered mine a few days ago got them in 2 days

[@LordKhelvhin]

@@joseg5913 from

[@joseg5913]

@@LordKhelvhin MAPerformance

[@chads.3952]

Literally just picked up a set of ISR resonated test pipes today and in the process of making the scs custom exhaust.

[@4uenvycustomsleds321]

that's my setup It's not going to be loud inside which is good but it seems like it's not as loud as his exhaust or others

[@chads.3952]

@@4uenvycustomsleds321 That’s what I was noticing with other people running this setup. If I don’t like it I might just go ahead and get non resonated test pipes.

[@5starhandcarwash182]

Aren’t they sold out

[@chads.3952]

@@5starhandcarwash182 I got them off someone locally, but conceptZ has them in stock, if you want to get them I would buy them now, I believe they stopped manufacturing them due to the EPA laws.

[@4uenvycustomsleds321]

Yeah I came from the gthuas meisterschaft full exhaust set up and it sounds awesome exotic and that was what I'll test pipes yet. But it was just getting obnoxiously loud for being in the car a long ride. so I tried this but yeah I'm thinking about changing my test pipes too or I put cutouts or just changing all of the exhaust again it's kind of hard to get it just where you want it.But the plus is you don't hear no drone and it's quite inside of the car. but it does have a good sound from like idle to like 4500 RPMs and then it's goes quiet after that. Good luck bro it's a never-ending thing in or hobby. but if you try out the none resonated isr test pipe and it works out for you let me know.

[@e7bk]

What if replace Borla with Magnaflow muffler ? And use flowmaster Pro resonator , do think the sound gonna be good?

[@SpeedCultureStudios]

Check out my exhaust video. I talked about this. It’ll sound good yes

[@wrkls_]

Would you recommend the FI HFC? Found a deal on some for 350 with less than 300 miles on them off a 2019 Nismo show car.

[@SpeedCultureStudios]

Sounds like a good deal

[@jinkazama3024]

ISR doesn’t sell test pipes anymore what’s the next resonated test pipes you’d recommend with no rasp ? Fast intentions ? Beluga ? Berk ? 1320?

[@SpeedCultureStudios]

They will all give you rasp. Resonated only helps slightly with drone but do nothing for rasp. With that said, they are all fine except Megan racing-or any test pipe that has flex pipe in it.

[@cristianlozano1674]

I wanna get the HFC for my 06 g35 coupe from Z1, would you advice against this or should I buy them?

[@SpeedCultureStudios]

It’s totally up to you man

[@jerm98]

Any recommendations to be loud but not annoying 😅 I have Z1 intakes & Beluga racing exhaust

[@SpeedCultureStudios]

Test pipes or just run a typical muffler delete with factory midpipe

[@artemiscool67]

Jersey only checks OBII port and your car rolls over a camera just to see if you have 'what looks like' a cat. When I had my test pipe on my Genesis they didn't care at all. CEL is what'll make or break you.

[@jc5919]

Hey brother how was the difference between your new exhaust set up, and your older muffler delete!!! Sounding style or performance or everything in general ??? I know probably a dumb question but want to hear your thoughts on it??? Thanks in advance brotha

[@SpeedCultureStudios]

It has a similar tone and volume to a muffler delete honestly-slightly louder. But the overall note is more refined. It’s a cleaner sound-that’s the only way I can think to explain it

[@KSxBClaN]

@@SpeedCultureStudios what’s the current set up?

[@acarrs1051]

With berk hfc would I need a tune or can I run them just like that? I currently have a p0420 code and don’t want to pay 2k to fix it do thinking of getting hfc

[@marquisvictor3688]

I just bought mine and I bought bark

[@jc5919]

Hey brotha also another question!! Whats the difference between the borla, and the alternative magnaflow that you posted???

[@SpeedCultureStudios]

Magnaflow is slightly smaller so might have a slightly more aggressive tone. Maybe a touch of rasp. If you’re 3.0t, the one I posted in that vid is 3” so larger diameter

[@jc5919]

Its a 3.7 not the sport though just 3.7L!! I purchased all the parts for the exhaust setup besides switching to magnaflow cause you mentioned a lil louder!!! I went to a shop and tried to explain my setup , and they said honestly if your not taking it to the track just go with the muffler delete!! 🤔🤔🤔😂😂 im all confused on what i should do now lol

[@SpeedCultureStudios]

@@jc5919 muffler delete is fine, but this system flows more and if you plan on tuning will yield more peak hp.

[@bigbonebhabon3747]

I’ve been looking around for hfc and across Luxma performance, anyone heard of them?

[@Alex-sy3uz]

What do you recommend for someone running motordyne exhaust on my G37?

[@SpeedCultureStudios]

resonated test pipes if you're trying to get more power, but you just have to remember they are not street legal and I am not recommending that you break any laws lol

[@jaredshult7323]

Do you think test pipes and a tune will impact the reliability or gas mileage of the car?

[@SpeedCultureStudios]

No

[@Hondacbr600rrish]

Been awhile. Finally got my motordyne exhaust in and on my car. I still have the z1 hfc on with the motordyne exaust and it's nice. But want something better sound and performance. So went with the art pipes and Z1 headers! There on the way and cat wait to put them on and re-tune my g37s!!! Lol 😆

[@DG-888]

Nice

[@fernandofeks2918]

I can buy your z1 hfc

[@Hondacbr600rrish]

I got my art pipes in but still waiting on the headers lol. But for sure, Idk when I'll get the headers though.

[@isaakriosss5557]

Might be a dumb question but barley got my g35 and will art pipes fit a catback exhaust?

[@skyyang4866]

Non resonated test pipes will be louder than resonated and hfc?

[@SpeedCultureStudios]

Yes slightly. Test pipes are open

[@stevenleaness470]

what problems would driving with an exhaust and test pipes without tune cause

[@SpeedCultureStudios]

Potential lean condition

[@Odog21st]

How are kinetix HFC I plan on getting those or berk

[@SpeedCultureStudios]

I liked their test pipes I think their HFCs are goodntoo

[@ebadahmed8765]

What do u think of invidia test pipes

[@SpeedCultureStudios]

Haven’t heard any reviews of them

[@thomasfelder4514]

Will use high flow cats fit my G37xs sedan ??

[@SpeedCultureStudios]

Yes

[@shaundurbecq7511]

Which hfc is best for the less smell?

[@SpeedCultureStudios]

They are all about the same.

[@burntmoose9292]

will I get pops with HFC I’m running a motordyne pipe btw!

[@SpeedCultureStudios]

Only if you get the proper tune. It's not healthy for the cats either so don't do it frequently.

[@Dreamevil2009]

Interestingly enough I drove my car for like 2 months with test pipes untuned and never got the check engine light I was pretty surprised haha

[@DG-888]

How did you go about tuning? Dyno or email

[@Dreamevil2009]

@@DG-888 The tune I did remotely. Unfortunately, in my area there's not really any tuners who specialize with these cars. The best option I had was to go to some shop that ADMINTUNING will work out of but it was like a 3 month ahead booking. I didn't want to drive untuned catless for that long so I ended up doing a remote tune with SOHO, same place as speed culture. Then I went to the same shop who tuned my STI and did some dyno pulls to see how she did. She ended up making 341 whp and 298 ft lb torque on their dyno. For reference my STI when it had the stock engine and just bolt on's made 356whp and 380ftlb torque on the same dyno. So it is a pretty moderate reading dyno, I thought my STI made to high of numbers at the time and took it to an alleged heart break dyno just to see but it was within about 5% of what the other dyno said.

[@tre2216]

⁠@@Dreamevil2009what setup were u running that made 341/298?

[@Dreamevil2009]

@@tre2216 At that time I was running the Takeda stage 2 intakes and their filters, Invidia test pipes, megan racing y pipe, remark mid pipe, and a rev 9 axel back (Frankenstein exhaust).

[@AD-1.]

post links to earlier videos on high flow cats and catalytic converters video plz

[@AD-1.]

nvm i’m stupid

[@SpeedCultureStudios]

Lol

[@VllBEZ]

I have an ark grip exhaust on my 2012 fx35, looking to add a HFC anyone have a recommendation for one? Looking to add more deep throatier to compliment my ark CBE. No rasp!

[@SpeedCultureStudios]

I think I gave a HFC recommendation in this video. It's what the video is about lol

[@VllBEZ]

@@SpeedCultureStudios I watched the video lol berks were the recommended one , but I’ve heard paired with an ark there’s some rasp , that’s what I don’t want!

[@SpeedCultureStudios]

@@VllBEZ lol With Berk HFCs there should be limited rasp.

[@100RacksJay]

Which HFC would you recommend with your set up on my g37x coupe to have minimal rasp or drone as possible?

[@SpeedCultureStudios]

This whole video was about my recommendations lol. Berk

[@100RacksJay]

@@SpeedCultureStudios I didn’t realize you mentioned that your test pipes were berk. I gotta pay more attention lol

[@SpeedCultureStudios]

@@100RacksJay I didn’t say that. I just have my recommendations in this video

[@bimmerfeen]

What’s the difference between Motordyne test pipes and z1 test pipes

[@SpeedCultureStudios]

Test pipes are test pipes really except for Megan racing-they are no good

[@christophervalencia351]

Im from cali whats my best options?😭

[@SpeedCultureStudios]

😂 probably stock from what I’ve seen in Cali

[@johnmichaelbarbuto8653]

The one biggest problem I have with my test pipes is the fuel smell. If I do Highflow cats does it get rid of the smell or is the smell still there?

[@SpeedCultureStudios]

It will make the smell less, but that’s part of having a race car man haha

[@johnmichaelbarbuto8653]

True, thanks man I appreciate all your content 💪🏻

[@cblack9369]

Smell slightly there.

[@erikdyke3123]

That is why I NEVER get test pipes, I have modified three cars and HFCs are where its at and usually they produce 2 or 3 hp less than test pipes so no big deal and most of the time they also sound better.

[@dwettjunkie5623]

Wheeewwwwww😍😍🔥

[@2FittedBW]

Another great video

[@SpeedCultureStudios]

Thank you!!

[@ace_otx5479]

Second

[@johnhall5318]

Hey do you have a snap chat or anyway I can get in touch with you . I wanna ask a few questions about exhaust

[@SpeedCultureStudios]

I have IG man. Same name

[@bogartin4561ify]

Tell you right now stay away from isr !! My resonated yesterday pipe just shot out from under my car ! Had them for about a year and when I say they just blew out literally just pulled my car back home having to go 2mph so I didn’t blow my VQ but wth man who ever is welding their stuff needs to be fired 🥺

[@DJWoopneck]

Isr is discontinued

[@SpeedCultureStudios]

Lots are being discontinued now...Government cracking down

[@DJWoopneck]

@@SpeedCultureStudios that's no bueno

[@bobby3914]

Berks sucks didn't last 10k miles I have a p0430 bank 2

[@SpeedCultureStudios]

First I’ve heard that. Good feedback

[@GRANT-hz8cm]

Ayyy early

[@_u2ez_318]

Anyone got some info on HFC on a 2007 Lexus is350? New to this stuff I got a axle back HKS exhaust rr intake and going to tune soon, I’m not sure how or what HFC I should install and where to buy Please if anyone knows let me know or HMU on insta @s_afzalee thanks!!