Decided to redo my exhaust h pipe or x pipe?

[85_SS_302_Coupe]

I wouldn't do this. The H-pipe serves a function of balancing the exhaust flow between the left and right banks of the engine. Check it out...

Purpose

• According to MOPAR Muscle Magazine's article on Dodge Challenger exhausts, the H pipe essentially tricks your car's dual exhaust system into thinking it is bigger. The pipe's two-armed structure sends excess pressure from gasses from one arm of the pipe to the other. It does this when there is no exhaust pulse on the second side, which builds up more pressure in the pipe than normal. In an H pipe, engine gasses follow the path of least resistance (straight through each pipe's arm) instead of going 90 degrees through each pipe and into the other half of the dual exhaust system. The H pipe's two-armed system also mimics your engine's cylinder banks and helps balance them, according to Street Directory's website. This is what makes the H pipe an effective part of a dual exhaust system.

That's all true and all, but there's still something to be said about tuned length collectors at the end of open headers for making peak power. I suppose the difference is that a full exhaust system has muffles and more pipe to run through whereas open headers with collectors don't so there's less restriction.

 

[Mintsick]

I run the pypes stainless X and I've been very happy with it, I've had flows (chambered), then pypes (straight through), now Spintech (Spiral/chambered) and by far I enjoy the sound of the x pipe/spintech setup.

 

[bentley429isBAC]

Do a X pipe. As for the straight pipe no mid pipe deal, my straight 3.5" into bullets seems to be just fine. Depends on whats in front of the exhaust.

 

[Mintsick]

^ Since mid pipes are so common these days it is sometimes easy to forget that dual exhaust existed for a long time without any sort of balance tube/crossover.

 

[cobra10494]

Ive heard this one is better than that one x is better than h h is better than x....whats your thoughts?

Bbk shorties,Bbk off road x and Mac cat back...love the sound on my 90 gt!!!!