USAMuscle

Forget the original thread topic, I'm changing format. While searching for a VRS X-pipe online I stumbled across something....(read next post).

USAMuscle

Hmmm, found an interesting thread on another forum.
http://64.177.72.121/forums/archive/...hp/t-9553.html

Tanthalas3901-09-2005, 06:31 PM
The March 2005 (don't these guys know it's only the beginning of January?) issue of Mustang Enthusiast did an X-Pipe Shootout. They put five off-road x-pipes head to head:

1) BBK
2) Bassani
3) Dr. Gas
4) Magnaflow
5) VRS

They also did some comparisons of H-Pipes vs. X-Pipes. Without totally plagiarizing the magazine, and without going into any detail, here's what we can all learn from this. Remember, these aren't necessarily my opinions, this is straight from the source.

1) All off-road x-pipes are the same.
2) Catted x-pipes perform virtually the same as off-road, up to 340hp.
3) X-Pipes and H-Pipes are identical in terms of power production, on both high-end and low-end.
4) H-pipes are a lot louder than X-pipes.

Don't know if I agree with all of that, because to me it sounds like my off-road X is louder than my off-road H, but I could be wrong I guess. Anyone else have an opinion? Any input?

jdaniel

I dunno. I wanna pull up next to someone with the same set up as I, except with an H pipe and see who is louder.

code3GT

I definitely think an X is louder than an H. Was this on 4.6's or 5.0's, because an H on a 5.0 sounds better than an X... IMO

mdvaldosta

I think the h would be louder and deeper at idle and the x louder at wot and alittle bit better top end performance.

kubball2005

I agree, I love how my h pipe sounds at lower rpms but it's not the same at the higher ones.

Soaring

X-Pipes are designed to free up additional horsepower and torque by reducing the effect of the out-of-sync pulses. The out-of-sync firing order common with most V8 engines occurs when two cylinders on the same bank fire within 90° of each other. This creates a “crowded” condition in the collector and exhaust pipe. X-pipe crossover allows balancing, equalization to reduce negative harmonics and increased exhaust velocity. Adds up to 12HP! H pipes do the same thing basically, but the exhaust has to leak over to the opposite exhaust pipe instead of being forced over there. So, while only a small gain in HP, the X pipe is preferred.

jdaniel

^^^ Nice cut & paste. ^^^

blueangelfightr

I think that I am going to go with a X pipe on my exhaust when I do it. Also which headers should I get? I have allready decided on SLP pipes.

1{}D{}{V}{}DGT

i have had both on my car and the x is louder when i get on it but the h is louder at idle