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Test Pipes vs. High Flow Cats | Q50 | G37 | 370z

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What parts to buy? I've seen the question pop up in a few places over the last couple of weeks in a couple of different places. Lets talk about catalytic converters, how they hinder performance and some options available to fix that!
The links below will take you to some of those options!!
Some Links provided are affiliate links and purchasing through them may result in this channel earning a small commission, at no additional cost to you. These links may include the Amazon Affiliate and eBay Partner Network.
Generic High Flow Cat: amzn.to/2EnQLoD
Berk High Flow Cats: amzn.to/2Pc7LCl
Vibrant Resonator: amzn.to/2KXdMV5
Resonated Test Pipes: www.importimag...
Top Speed Resonated Test Pipes: topspeedauto.c...
Test Pipes: rover.ebay.com...

Опубликовано:

21 фев 2019

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Комментарии : 149

@drklg1 5 лет назад

Glad to see someone still keeping the 3.7 Spirit alive.

@SpeedCultureStudios 5 лет назад

Zero2 Q50 It’s a great platform and we can still have a lot of fun with it!

@drklg1 5 лет назад

@@SpeedCultureStudios funny you say that i just added a video in the snow having sOMe FUN

@shedonleemf 3 года назад

No replacement for displacement!

@MrChips005 4 года назад

great content! i noticed in watching your videos lately, the volume is very low. Maybe turn it up on the camera?

@Hondacbr600rrish 5 лет назад

Nice video bro. I also "heard" that once you put HFC's on and the check engine light comes on. You should disconnect the negative wire to the battery and it should reset it. 🤞🏽 lol.

@SpeedCultureStudios 5 лет назад

You may get a CEL with high flow cats. The battery reset should work. You definitely will with test pipes-defoulers work sometimes, but a tune is the best way.

@QfiddyKJ Год назад

@@SpeedCultureStudios that’s my question as well, so from what I’ve read, when you get test pipes and get the CEL if you get a tune it’ll take away the CEL??

@SpeedCultureStudios Год назад

@@QfiddyKJ yes

@jerrykicks4898 Год назад

what kind of tune will i need if i put HFC in?

@SpeedCultureStudios Год назад

@@jerrykicks4898 there aren’t different kinds. It just needs to be tuned to make sure it’s running to its maximum capabilities with the new components

@akame7433 5 лет назад

In case your going back and forth on Berk or fast intention hfc. They both use a magnaflow catalytic converter each company just make it to fit the make of a certain car.

@SpeedCultureStudios 5 лет назад

That’s great to know! I was actually starting to consider making my own high flow cat by purchasing something like a magnaflow cat and welding it in place on my test pipes.

@akame7433 5 лет назад

One Fine Trek that the beauty of knowing your way around a welding machine. I can’t remember the exact part number the magma flow but I’ll track it down and let you know. Keep up the great content

@SpeedCultureStudios 5 лет назад

Deshannon Johnson thanks man! I like to try some different things-sometimes it works out and sometimes it doesn’t lol. Thanks again!

@VerisimilitudeDude 5 лет назад

That's why people should use altered atmosphere hfc's.

@SpeedCultureStudios 5 лет назад

Verisimilitude Dude People should use HFCs because running with no cats is not allowed. And it’s a safe bet in terms of exhaust note.

@darronpattel 2 года назад

Don't use a catalytic converter if you're using leaded racing fuel, it will be almost pointless, and it could actually be bad for your engine if it gets clogged. If you use gas from the pumps, it'll smell really bad without a cat on and it'll be a lot more noticeable then with leaded fuel and you won't be able to drive alot of places in the states. In Canada it's illegal to drive without a muffler, oddly enough though we dont have to worry about going catless because the laws don't require inspections for anything newer then 1992, but we also don't have leaded fuel so it will really stink unless you make it yourself somehow, which is why I put a high flow cat on my road car. If people actually understood this then they could add lead to their fuel and drive around catless without driving people nuts, though it'd still get you in trouble in many of the states...

@TheChef1999 Месяц назад

what test pipes do you recommend to pair with the scs exhaust? i want to make it easy and be able to just bolt on i think the berk resonated test pipes sound quiet unless the camera aint doing it justice i want something that sounds mean with that low deep growl

@SpeedCultureStudios Месяц назад

Any test pipe is good except Megan racing. Check out my test pipe videos for some references

@AlbertZora 5 лет назад

Would the HFC make it crackle/pop?

@SpeedCultureStudios 5 лет назад

Depends on your catback. You might get some pops here and there, but generally the guys getting the real crackles are having that tuned in.

@lulmoewiththegimpyleg6815 2 года назад

This helped A LOT BRO THANKS 🤠🤠

@SpeedCultureStudios 2 года назад

Glad to hear it!

@FerasDishli 5 лет назад

Thank you 👍🏻 Is High flow cats needs tune? Or i can run with OEM tune? I mean: will check engine light will ON?

@SpeedCultureStudios 5 лет назад

I have heard some folks getting a check engine light with HFCs and some not. If you get a cel, you could get some extenders for the O2 sensor bungs. But obviously a tune will get you the most out of the modification.

@babyxjesus5305 4 года назад

No code on my ark hfc i have a iSR y pipe and tomei cat back love the crackles and pops I’ll post a exhaust clip soon

@MrTilbin Год назад

Depends if your car was made for CARB or not. Check under your hood. Certain states require certain emission standards to be sold new in their state.

@r.k862 11 месяцев назад

Hi, i got 370z with open catless test pipes and cbe exhaust with resonators. If i want to reduce the loudness of an exhaust what can I do? Does adding more resonators quiet it more down? I don't want to install HFC because I heard it will reduce the hp by a significant margin. Any ideas would be helpful. Thanks

@SpeedCultureStudios 11 месяцев назад

yes, more or bigger resonators.

@r.k862 11 месяцев назад

@@SpeedCultureStudios what's the cheapest or best way to get those resonators. Is there a specific resonator brand you recommend? I don't want it to be restrictive and lose on hp

@SpeedCultureStudios 11 месяцев назад

@@r.k862 there are a lot of cheap ones. check out my scs catback video. I have some resonators linked

@5starhandcarwash182 3 года назад

Will the hfc with your custom exhaust system with a tune make good pops ? And sound loud

@SpeedCultureStudios 3 года назад

They should sound good. You’ll be able to tune for some small pops with HFCs I’m sure

@joseg5913 2 года назад

Did you ever got the HFC with a burble tune? I’m getting mixed answers that’s it’s fine and that’s it’s bad

@ls6king316 5 лет назад

Which highflow cats fit the 2014 Q50 rwd platform? Z1 doesn’t sell them for our platforms BUT I’m hearing that the highflow cats that they sell for the G37 fit?

@SpeedCultureStudios 5 лет назад

Yes the G37 HFCs SHOULD fit. The part numbers for fast intentions HFCs is the same for the G37 and Q50. Otherwise Berk makes a nice high flow cat for the Q50 (again compatible with the G37). Here’s a link: amzn.to/2UPWuZl

@ls6king316 5 лет назад

@@SpeedCultureStudios thanks, I'm wondering why Z1 didn't tell me that as much knowledge as they have of these platforms

@SpeedCultureStudios 5 лет назад

ls1killa I don’t know. Sometimes it’s not lack of knowledge. Sometimes its just poor customer service or it’s sales strategy.

@rayniel_22 5 лет назад

Can you pass the inspection with test pipe?

@SpeedCultureStudios 5 лет назад

Rayniel Edanol Most likely not. If your inspection consists of an OBD2 inspection and the car has been tuned and no codes show-maybe. Otherwise, it wouldn’t pass smog. High flow cats are probably the best option.

@sleeper.simulant7327 4 года назад

Depends. Where I live (Vermont) we have visual/OBD2 check. The resonated test pipes pass visual because they look like a hfc, with the added benefit of better flow over a hfc. Add a tune and your car will pass here without any issues.

@johnboy5632 3 года назад

So what do you recommend best is for the infiniti g37 coupe?? Please respond. BTW. I live here in California....

@SpeedCultureStudios 3 года назад

You can’t do much in California. You may pass with high flow cats

@johnboy5632 3 года назад

@@SpeedCultureStudios yea there's ALOT of laws out here on emissions.... OK I'll look into that. Thanks for the response. Appreciate it

@swervv2957 3 года назад

@@johnboy5632 hey bro I’m in Cali too with a G37s coupe, my passenger cat is going out I think and was looking into the high flow cats. What rite did you end up going? How did it workout for you?

@Charlie_Alpha_Lima 10 месяцев назад

Great explanation! Thank you

@SpeedCultureStudios 10 месяцев назад

Thanks for watching!

@ordovicicosilurico6799 Год назад

The test pipe and the pipe with the resonator (option 3 and 4) has the same performance power ? Or the one with thw resonator gives less power than straight pipe ?

@SpeedCultureStudios Год назад

Same power potential. Exhaust flow is not interrupted at all so there is no difference in power.

@ordovicicosilurico6799 Год назад

@@SpeedCultureStudios thanks man, and thank you again for this nice content ill be around checking all this good information

@MrPurcej07 4 года назад

Thanks for the video man

@SpeedCultureStudios 4 года назад

You bet

@casoncerda2593 5 лет назад

What axle back are you going with when you tune and put the test pipes on?

@SpeedCultureStudios 5 лет назад

Cason Cerda The Exhaust is finished. It’s custom from the y pipe back. I have a few recent videos about it. It’s 2.25” off a 1320 Performance y pipe with 12” vibrant-like resonators finished with 4” dual-walled stainless tips.

@casoncerda2593 5 лет назад

One Fine Trek your wife is gonna be pissed!!! Hahahaha another great video man. You might shoot some flames on the dyno!

@SpeedCultureStudios 5 лет назад

Cason Cerda Haha I know she is! We might have to add some single chamber mufflers, but we’ll see. We might get a flame or two!

@casoncerda2593 5 лет назад

One Fine Trek I’m sure you have seen it but there is an axle back on amazon made by rev9. Its $315 and looks identical to the tanabe axle back. It’s getting pretty positive feedback!! I’m strongly considering it over the muffler delete! I think it might be perfect for running test pipes as well, but I haven’t seen anybody with this setup yet so I have nothing to base it off of.

@SpeedCultureStudios 5 лет назад

Cason Cerda I have seen that on amazon-I may have linked to it in a previous video. $315 isn’t too bad if it fits up well.

@jonathanprince5689 3 года назад

How do you feel about the Ark HFC?

@SpeedCultureStudios 3 года назад

Good!

@roberttinoco4227 11 месяцев назад

Anyone have the motordyne hfc ? If so whats ypur thought on them thanks

@logantepper3921 2 года назад

thinking about stillen catback + berks or kinetix hfc on my 2011 g37. Will a tune be important to get? I’m looking for more of a grumble and less of a shriek.

@SpeedCultureStudios 2 года назад

A tune is less important with HFCs compared to test pipes, but in order for the car to run to its fullest potential, it should be tuned with HFCs, yes.

@clipofthedayyup4907 Год назад

That said do all your planned mods and then tune. There is ponies on the table to have and overall drivability will be better

@torvarrisevans7846 2 года назад

I heard test pipe makes more power than resonator test pipe is this try .

@SpeedCultureStudios 2 года назад

No. Not true. They are the same thing.

@torvarrisevans7846 2 года назад

@@SpeedCultureStudios ok cool

@gokuson6635 3 года назад

What do you do for a job or profession?

@SpeedCultureStudios 3 года назад

Capital Equipment sales. Why?

@gokuson6635 3 года назад

@@SpeedCultureStudios I applaud you for replying back. The reason I asked. I see you are doing car mods & different things and maybe there's something I can do different personally.

@SpeedCultureStudios 3 года назад

@@gokuson6635 I love cars and racing and making videos etc. but still need a “real job” to pay the bills lol. What type of work do you do now?

@gokuson6635 3 года назад

@@SpeedCultureStudios Understand yeah I work the graveyard shift at a airport it's okay you know it helps to put bread on the table. But hey you keep up the good work my man.

@MrTilbin Год назад

The power gains for any street driven car or weekend warrior track car is negligible. It's MAYBE 5HP.

@SpeedCultureStudios Год назад

For the Q50 3.7 the difference between test pipes and HFCs after a tune-and all other mods the same-we see between 5-10 hp difference.

@v36vhr 7 месяцев назад

You think its possible to make 340whp + fbo/e85 setup without running a test pipe but a hfc instead. @SpeedCultureStudios

@neal6473 Год назад

Hight flow catalytic converters are cheaper than the stock catalytic converter

@SpeedCultureStudios Год назад

They can be, yes

@MayorInCheif 3 года назад

begins 1:44

@brandonbonanno3847 3 года назад

Those ISR resonated test pipes work on the q50 right?

@SpeedCultureStudios 3 года назад

Yes

@brandonbonanno3847 3 года назад

@@SpeedCultureStudios thank you so much

@hayktv8511 4 года назад

High flow, test pipe or catless ? Any recommendations

@SpeedCultureStudios 4 года назад

Test pipes are catless. Ugh flow cats keep you legal.

@sasquatchnunu506 4 года назад

Dude screw that the 3.7 naturally aspirated engine all you need is a rear axle back about $100 and your Q50 will sound like a mustang on steroids

@Mrquietstom2022 4 года назад

@@sasquatchnunu506 Why not both? I did

@sasquatchnunu506 4 года назад

@@Mrquietstom2022 I was saying the the NA 3.7 with a rear axle back sounds better than most. For $100

@ushyamamoto7098 4 года назад

Sasquatch Nunu can u explain I have a q40 what would I have to do to make my car sound like that lol

@ciprianvq 2 года назад

what wil happen if i get test pipes but don’t tune it

@SpeedCultureStudios 2 года назад

Check engine light. Some cars will run funny. The point of test pipes is to make more power. You can’t make more power with them unless you tune

@macmotorizedbike3834 10 месяцев назад

Berk or Z1 cats which one better?

@SpeedCultureStudios 10 месяцев назад

Both good.

@ricci169 4 года назад

I care

@dougarnold2121 5 лет назад

Do you think the test pipes are worth the horsepower gain over hfc?

@SpeedCultureStudios 5 лет назад

Depends on what you’re going for. If you’re looking at dollar to hp, yes they’re worth it. More power and far less expensive. If you’d prefer to keep it a bit quiet and are willing to spend a few extra hundred, then go with HFCs

@zhang3104 8 месяцев назад

Great video! I have some questions about the test pipe. I have a z1 tp on my 370z. I changed the z1 gasket. I'm sure there are no leaks, but I can smell it inside the cabin when I stop. I was wondering if that would harm your health. Maybe I should switch to HFC? 😢

@SpeedCultureStudios 8 месяцев назад

It’s the cost of performance 😂

@zhang3104 8 месяцев назад

@@SpeedCultureStudios 👺

@anthonydonate9938 2 года назад

The state of california cares

@SpeedCultureStudios 2 года назад

Indeed they do

@RegularassDave 5 лет назад

308 boi

@bossally1603 3 года назад

Bro whispering why?? Lll

@SpeedCultureStudios 3 года назад

Check your playback settings lol-sound is fine to me. Besides that-old ass video and no external mic. Better now , I promise lol.

@shanehiggins3033 3 года назад

I can't hear you dude. I keep turning volume up, you keep talking softer. I stop watching...

@SpeedCultureStudios 3 года назад

Adjust your playback settings. 40% volume in phone and pc is money for me.

@philipholman1713 4 года назад

Dude why are you whispering

@SpeedCultureStudios 4 года назад

Dude I’m not. Super old video before I had an external mic. Might also want to check your speaker settings. Playback is perfect for me on mobile and pc.

@281cu6 4 года назад

@@SpeedCultureStudios You're not whispering but you're speaking really softly. Almost like you're gossiping in a separate room. Glad to hear you got a new mic setup. 👍

@SpeedCultureStudios 4 года назад

Colt 604 you guys got something wrong with your phones or computers. Playback is perfect for me on my phone and laptop at 40% volume.

@lulmoewiththegimpyleg6815 2 года назад

Low pitch .... helps you tune in better 🤣😑

@Bigbaloooo 3 года назад

Why don't you speak up? It drives me crazy...

@SpeedCultureStudios 3 года назад

Old ass videos bro. Also, change your playback settings. Sounds perfect for me on mobile and pc at about 40% volume. I don’t want you going crazy!

@Bigbaloooo 3 года назад

@@SpeedCultureStudios lol, No my volume is fine . A lot of your videos you talk so low, like a whisper. Yes I can crank up the volume but at times like laying in bed with the wife sleeping and I'm listening then all of a sudden UTube commercial pops in...WAM she gets pissed. Anyway, good content

@SpeedCultureStudios 3 года назад

Rusty_Steel lol sorry about that man

@trevorthomas6043 4 года назад

You will not gain 1 horse power doing cats vs no cats

@SpeedCultureStudios 4 года назад

I’m not sure what you are saying. Without a tune I would not suggest removing the cats. However, with a tune the horsepower gains are significant compared to tuning with cats or high flow cats.

@trevorthomas6043 4 года назад

Speed Culture Studios It depends on the vehicle

@k.hamilton5848 4 года назад

Speed Culture Studios actually you wont gain any hp running no cats vs high flow cats unless you are doing forced induction or anything above like 600 hp. High flows wont restrict much of anything until you get to those higher hp numbers.

@SpeedCultureStudios 4 года назад

K. Hamilton Sorry, that’s not true for this platform. We’ve seen several examples-you can see several on RU-vid-there is typically a difference of 6 - 10+ between test pipes and high flow cats. You will never see a vq37 with HFCs make as much power as avq37 with test pipes. The amount of restriction is still pretty substantial. But I think you misunderstood what I said anyway. I said the gains between factory cats and HFCs or test pipes will be solid.

@SpeedCultureStudios 4 года назад

Trevor Thomas well sure-but we are talking about the vq37. But generally, no matter what the vehicle in my experience, the factory catalytic converters are the main bottleneck. Opening the exhaust system is necessary for hp gains.