3XBlack6spd

I just bought my B&B Bullet Exhaust. I am thinking of buying a Corsa X-pipe from a member on here. Is there any real benefit of an aftermarket X-pipe with stock cats, and manifolds? I am going to do headers eventually anyway, but want to know about the X-pipe with axle back for now? Is there any real HP gain, Sound gain, Anything??

Anyone that has real data, let me know!

Thank you!

TMyers

You should already have an x-pipe in the stock configuration.

3XBlack6spd

I havent been under the car, but isnt it an H-pipe?

JoesC5

I seem to remember some posts back when the Z06 was a new release, that an aftermarket 'X' pipe was good for around 5 HP over the stock 'H' pipe, but that HP increase depended on which manufacturer of the 'X' pipe.

TMyers

I think all LS7's came with x-pipes. The LS2 came with an h-pipe, but all LS3's have x-pipes.

JoesC5

If he has a 2008(as in his aviator) then the car came with a 'H' pipe. All ZR1(LS9)'s came with 'X' pipes but not all Z06(LS7)'s.

3XBlack6spd

Yes, My Car is an 08. I could simply look at it i guess, But it's at home and I'm at work! I am pretty sure its an H-pipe.

JoesC5

Z06's didn't get the 'X' pipe until the 2011 models.

JoesC5

Yes, the LS3's did come with the 'X' pipe from day one(2008 models), but the Z06(LS7) had the 'H' pipe from 2006 through 2010. Then they recieved the 'X' pipe.

3XBlack6spd

I just verified... I work for a GM dealer, Pulled the vin and Diagram of the stock system , It is definately and H-pipe... So now back to my original Question!

Streetk14

X-pipes are usually worth a little bit of torque and change the exhaust note to a smoother pitch. Usually helps with interior resonance as well. I'd do it if the price is right.

got2hav1

You will see a slight difference. At least I did on my 09Z when I removed the H pipe and replaced it with a X pipe from a ZR1. It will also make the exhaust system a tad quieter as well. I later added the Corsa Z system and now it sounds fantastic.
I first noticed this on my previous Z ( 2003 model ). I put a Corsa X pipe on it and you could tell it was just a little quieter. As others have said, I would do it!