^^ I don't think exhaust depot will fit. I may get a custom y pipe made. But if it fits then I'll just get the ED. Let us know. I'll email them today a's well just so we can get some info

 

No sure why it would not fit the stillen Y pipe fits.Dosent it , the CBE systems fit both cars.. But hope you have better luck than me.

 

Well simple physics state that with a smaller diameter, you have more restriction, but at the same time the exhaust will flow at larger speeds to maintain the same mass flow rate. Think of it as a two lane road vs a four lane highway, you'd need double the speed in a two lane road to flow the same amount of cars in the same time frame. That's why at low rpm's you're better off with a small exhaust to help flow the gases at a high speed whereas at high rpm's, you want to flow as much exhaust gases as possible, hence the larger diameter becomes a more desirable choice.

What an x-pipe does though, is that it improves flow by creating a scavenging effect, since exhaust gases flow in a pulse manner rather than continuous, the gaps between the pulses create negative pressure that suck in the pulses coming from the other cylinders and so on.

It all comes down to tuning the length of the pipes and design of x-pipe bends, to improve flow at certain rpm range, you can never have a "Good-for-all rpm's" exhaust, not without having some sort of varying exhaust geometery

 

What about not having any? Why do we need an X,Y,H or even W pipe, whats the purpose of them? why not a full dual exhaust?

 

Because on a naturally aspirate engine, you would benefit from the scavenging effect of exhaust pulses

Initial scavenging takes place in the collecter of your headers, then both headers collect together using an X pipe or whatever. It's just the way to benefit most out of a naturally aspirated V-engine

 

i wonder if stillen would just sell a y pipe?

 

Get MXP style great power and sound

 

^^ doesnt fit g37X

 

try invidia someone on here fabricated on and said it works

 

Yea but hard to buy a system for 800-900 then fab it to fit? UG the X is hard to find a exhaust.. Anyone know if ExoticSpeed R1-T Exhaust Infiniti G37 fits ,

 

Bought the above, R2-T will be installing next Saturday.

 

If x or H pipe provide more horsepower at Higher RPMS who has an x or H for a 2009 or higher G37x sedan? Also who has HFC for the g37 sedan?

 

I don't know if this is a stupid question, what if I installed a X or H pipe on my stock 2013 G37S sedan stock c/b? Would that be stupid? Or would there be some benefit? Sorry bringing up an old thread.

 

Hey! Sorry im still kind of new to car terms and whatnot. So far I have DC short ram intakes, HKS Hi Power Mufflers, Kinetix HFC's, and a Megan Y-Pipe. I want to make my car louder or at least have it sound better. What X-Pipe should I get? Should I even get a X-pipe? What is back pressure? Is it worth it?