I was just reading an article in either GM High Tech or Camaro Performers on this maroon IROC that had long tube headers and an H pipe. I was wondering which H pipe that guy used?

 

Most likely custom. 3rd gens are very tight down low and classic routing from off-the-shelf parts rarely fits and when it does it drags on everything

 

Just wondering how a H-pipe would benefit a 3rd gen if you are running a Y-pipe?

 

Doesn't.

 

An H-pipe or a X-pipe is for true dual exhaust. A Y-pipe is for running a single pipe back. You can run one or the other, not both.

 

you could run a y-pipe after the h-pipe to convert back to a single

or a y-pipe to a h-pipe and back to a y-pipe so you can say you have a h-pipe

 

 

But if your going through all that trouble you might as well throw an X-pipe in there somewhere

 

i ran an x pipe when i fabbed up my dual exhaust years ago.....there is room for one......

 

Well fine....I'm gonna run a y pipe into an H pipe then an X pipe to a Y pipeand then uuuuuuh...uuuuuuh...YEAH WHAT HE SAID

 

thats a great idea, then toss 2 cutouts in there too

 

Every "test" I've seen with an "H" or "X" pipe involved long tubes and full dual exhaust.

An "H" or "X" pipe allows both banks to benefit from both halves of a dual exhaust system. Obviously, if your exhaust otherwise merges into one, it's worthless.

A cut-out is an admission that you chose your muffler based on some criteria other than flow capacity.

 

There is room for an x-pipe. Here's my homemade true dual

 

mig or tig? wondering, im guess Mig? i picked up a mig, im going to try this x pipe soon. Nascar status

 

Wow I bet that sounds awsome

 

you got a pic of the over axle routing? Looks like a very clean install

 

yeah i would love an over axle pic i was wanting to run true duels on my third gen and was trying to figure a good route, from what i've seen here that would work awesome and might i ask what size pipe you used?

 

Don't mean to hijack the thread but here's a few shots of over the axle routing. I used 2.5" tubing and a mig welder (Lincoln Electric Pro-Mig 140). There is more pictures of the install at this thread https://www.thirdgen.org/forums/exha...-own-true.html There is also video of what it sounds like at my cardomain.

 

thanks for the pics i hope you dont mind me hijacking your design

 

I don't mind but be patient when building it. Get yourself a bunch of 90deg and 45deg bends and about 13ft of straight pipe. I bought out all the 2.5" straight pipe I could find at my local auto parts stores.

 

I don't want to let the cat out of the bag but pwdbychevy is going to fab one of these for my car Just waiting on more pipe to come in... j/k As I said before... this is awesome work!!!

 

LOL! Thanks for the compliment and the heads up

 

Thats sexy, looks like a tight but clean fit. Was it a hassle? or simple?

 

It was somewhat of a hassle when I started it but got easier as I went along. The hardest part was routing it over the axle.

 

From the pics it definitely looked like a PITA to get it around the axle

I really have to say man it looks great, does it sound good?

 

It sounds mean as hell. Very deep tone. There's a video at my cardomain.

 

Not exactly a H pipe or X pipe but similar. It's a 3" -> 2.75" from the flange. Going to eb 2x 2.75" down stream also. I may do a side exit/boom tube but not 100% sure yet. I did a test fit and 2x2.75" will fit over my Fays2 rear.....it's a tight squeeze but doable.

 

are you missing some hardware on the pipes or how do they bolt to the headers?

 

V band clamps

 

That is sweeet. I also like how you did the Ovalized pipe, very nice. Now I know what to do with some left over stock and pipe. Thanks

 

2 - 2.5" Flowmaster Super 10's?

 

I have "total flow" mufflers, cheaper replica of super 10s... I love the sound (long tubes, duals, h-pipe, ls1 with 228/232 cam)