conway62

Now that I have my new 454 installed I need to tie in the exhaust. I installed a set of Hooker Super Comp headers with the install. I have new 2.5 inch exhaust all ready installed in the car. Just need to tie it in. The guy at the exhaust shop is trying to talk me into an X pipe. I was thinking of just an H pipe. Anybody have any suggestions or experiance with either? Or should I just forget it and have him just tie in the exhaust without either.

Thanks in advance. :hurray:

Metal Wulf

X is better.

Fevre

:iagree: but you might not even feel the diff, if your guy wants to install an X and it is no more money than an H I would do it.

tersian

I don't agree that an X is better. I think they both have thier merits. If you'd like to see a comparison on a Mustang, check this link out:
http://www.mustangexhaust.com/tech/HvsX/HvsX.htm

There are a few studies that show that an H pipe produces more torque in the lower RPM range while the X pipe helps with HP in the higher RPMS. They both have distinctive sounds, so I would go online and listen to a buch with your chosen mufflers to decide what you want. You may also want to consider installing a flanged H pipe to prevent you from having to drop the whole exhaust in case you want to move a pipe to work on one side of the car.

There are MANY other threads in the past about this, here is a link to one:
http://forums.corvetteforum.com/zerothread?id=201381

Fevre

As Clint Eastwood once said:

"That is the problem with opinions (tests) they are like a-holes, everyone has one."



http://www.carcraft.com/techarticles/69238/index.html


[Modified by Fevre, 3:15 PM 9/16/2003]

Alwyn678

I have an h-pipe but there was not enough room under my car for an X-pipe.I am quite pleased with it


[Modified by Alwyn678, 3:32 PM 9/16/2003]

pws69

2.5 in pipes, Dr. Gas "X", Flowmaster Delta 50's.

I like it a LOT!

mvftw

I just had new true duals installed with a H-pipe. I was told that an X-pipe is better, but only if it's close to the front. The C3's it's hard to get close to the front because of the tranny. He said it would be a waste to install an X-pipe that far back.

jpatrick636

First choice: X Pipe

Second Choice: H Pipe

Third Choice: Strait Duels

Fourth Choice: Hari-kari

Ryan77

I have headers, 2.5" pipe, X-pipe, and Flowmaster 40's. I like it, and my mechanic said it was no problem to install. I actually wish it was a little louder, but I liked the performance benefit of the X pipe more :cheers:

Glenn's 67 BB Vert

They both make the exhaust a bit quieter- and are both suppose to be as far forward as possable--Glenn :p:

TedH

x is better but you can probably get the H-pipe installed and still get benefit from improved scavenging and better tuned, softened rumble. The same muffler shop that installed my 2.5" duals, performed a very clean, efficient, H-pipe installation and for $50. They even took the time to adjust my duals so the exhaust tips were lined up.

vettfixr

A good shop can fabricate an H pipe that runs under the tranny. Here's pics of what I had done on mine and a pic of the Dynomax Ultraflow polished stainless mufflers that I installed later. It works real nice.

marky mark

vettfixr: nice set-up!!!

Crickett

:iagree:

vettfixr

Thanks. :)

flynhi

mvftw -
It's probably more accurate to say that the closer the x pipe is to the front the better. In addition to balancing exhaust pressure side to side, it doubles the cross section of the exhaust system behind the X.

jrzvette

Vettfixr

where did you have the work done? was it a NJ shop?

vettfixr

I had the work done at Kaspers Korner. in fact they took the pictures when they had it up on the rack. Here's their website.Look in the Galleries for examples of x pipes and custom systems. http://www.kasperskorner.com/kasperskorner.html

jrzvette

thanks