04 GTP Comp G - Borla exhaust anyone?

[Damnir]

I've done some light modding recently, time to get ready for the next upgrade. I am running a 3.5" pulley, K&N CAI, 180 thermo, NGK TR6 plugs, ZZP 1.0 PCM and had everything flushed so it's run like new again. I am looking at doing the exhaust next, and possibly beyond.

I was wondering if anyone has seen a ZZP Powerlog/Ported Manifold / ZZP 3.0 Downpipe with the Borla Cat-Back exhaust in action? I'm wondering what kind of power I'd expect, or, what kind of sound would generate from the setup. The ZZP downpipe will remove the U Bend, and I know I'll need an O2 extension.

I'm looking for suggestions. The budget is $1500, so I know it'll cover doing all of the above, and possibly more. I don't want a tin-can sound, or a tuner pitch. Looking for a nice grumble that's not overwhelming!

Thanks a lot guys! Your advice is important, since you're all GP owners/lovers. Cheers!

Oh, and if comparing exhausts, I've found that Borla setup for $800 shipped (U.S. of course).

[bricker82]

From what I hear, more people are happy with the GMPP Exhaust system for the previous gen GP's. All it requires is the moving of a hanger or 2. I think that sytem can be bought for ~$600.

[Damnir]

Is that GM part # 12498617 ?
http://paceperformance.com/index.asp...D&ProdID=73136

Thanks.. It says it's a 2.5" pipe, I thought a 3" was the best way to go if more mods are going to be done.

Thanks!

[bricker82]

Yup that's it, but if you want 3", Borla won't help, it's only 2.5" also. The only 3 inch I know is ZZP's, but then again, I may be wrong.

Most people go with a 2.5 catback and a 3" downpipe, not too many running actual 3" all the way.

[Damnir]

Well, that's good to know. I didn't want to order all this stuff and realize it wasn't going to work that well.

If I choose this;
ZZP downpipes
Model:3 inch 304 weld in With Cat
Option 2:Add rear O2 extension for 04+
Option 3:none selected
Option 4:I'm keeping my stock DP


Do I need any other gaskets? I've never done exhaust work myself. So far I am aware that I'll need the O2 harness/extension, but above and beyond that, I am not too sure! As far as I can tell, this downpipe will let me work with just about anything out there at this point too. Either the GMPP or Borla, Corsa, etc?

Thanks!

[bricker82]

Honestly, I'm not sure if you will need gaskets. You could always email ZZP and ask, they'll be honest with you.

[Damnir]

Hey Bricker, thanks for all the help. Can you email me some pics of your car? It looks pretty sweet from your sig! If so, send 'em to [email protected]

I'm interested in whatever you have.. inside/out. Thanks!

Oh, I'll also email ZZP and find out a little more =)