Y-Pipe or Not to Y-Pipe?

**cruz3** · 08-03-2006, 07:53 PM

I have my SLP FlowPac and Hooker CatBack installed on my 2002 Z28 (55k miles). Is it worth getting a Y-pipe? I noticed the factory Y-pipe was a misshapen disaster. I intend to keep the cats until such time that they fail and don't intend to do headers or a cam. My buddy has a lift, so installation is no big deal and I need to go over there to adjust the exhaust a little bit anyway. What can I expect from a Y-pipe and does anyone have experience with this specific combo? Thanks

**sunsetorangess** · 08-04-2006, 10:46 AM

Which flopac did you go with? I wouldnt worry about gettin rid of the cats and y until you get headers, then i would get rid of them. As far as gettin a new y with manifolds i wouldnt waste my cash.
J

**cruz3** · 08-04-2006, 06:16 PM

I got the SLP flowpac with CAI, Lid, Blackwing, and Bellows. Bellows wasn't that big a pain. I am getting some scuffing on the underside of the hood. Lid really was the big difference in the assembly. Thanks for the advice - that's kinda what I thought and I'd really like some ZR-1 wheels...

**Danger731** · 08-04-2006, 06:19 PM

yeah save $ , not worth it from what I've seen.

**MysticZ28** · 08-05-2006, 07:23 PM

Originally Posted by cruz3

I have my SLP FlowPac and Hooker CatBack installed on my 2002 Z28 (55k miles). Is it worth getting a Y-pipe? I noticed the factory Y-pipe was a misshapen disaster. I intend to keep the cats until such time that they fail and don't intend to do headers or a cam. My buddy has a lift, so installation is no big deal and I need to go over there to adjust the exhaust a little bit anyway. What can I expect from a Y-pipe and does anyone have experience with this specific combo? Thanks

What you call a mishapen disaster is actually a crush pipe ... the actual flow area is the same as the rest of the y-pipe. The only difference you will see with an AM y-pipe is a lighter wallet.

**daveb91** · 08-06-2006, 08:43 AM

Originally Posted by MysticZ28

What you call a mishapen disaster is actually a crush pipe ... the actual flow area is the same as the rest of the y-pipe. The only difference you will see with an AM y-pipe is a lighter wallet.

So you get minimal gains from a aftermarket y pipe?

**MysticZ28** · 08-07-2006, 08:53 AM

Originally Posted by daveb91

So you get minimal gains from a aftermarket y pipe?

Minimal ... would be a stretch.

**AKIRA** · 08-07-2006, 09:15 AM

What I never understood that if the stock Y is 2.75", then why do some companies sell 2.5"!!!! And people dont notice this!

I agree with getting headers first. Or to the very least get a headers and Y combo, as they almost always cost cheaper than buying them seperatly and the y is 3".

**MysticZ28** · 08-07-2006, 11:47 AM

Originally Posted by AKIRA

What I never understood that if the stock Y is 2.75", then why do some companies sell 2.5"!!!! And people dont notice this!

I agree with getting headers first. Or to the very least get a headers and Y combo, as they almost always cost cheaper than buying them seperatly and the y is 3".

Stock I pipe is 2.75 ... the stock Y is 2.5