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Y-Pipe or Not to Y-Pipe?

This is a discussion on Y-Pipe or Not to Y-Pipe? within the External Engine forums, part of the LSx Technical Help Section category; I have my SLP FlowPac and Hooker CatBack installed on my 2002 Z28 (55k miles). Is it worth getting a ...

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    Junior Member cruz3's Avatar
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    2002 Camaro Z28

    Y-Pipe or Not to Y-Pipe?

    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

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    Life in the Fast lane sunsetorangess's Avatar
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    Met. Sunset Orange
    01 SS

    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
    2001 SS, Its not the car its the Driver that matters....

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    Junior Member cruz3's Avatar
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    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...

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    Senior Member Danger731's Avatar
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    yeah save $ , not worth it from what I've seen.

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    Mystic Teal
    01 Z28

    Quote Originally Posted by cruz3 View Post
    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.

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    Quote Originally Posted by MysticZ28 View Post
    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?

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    Mystic Teal
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    Quote Originally Posted by daveb91 View Post
    So you get minimal gains from a aftermarket y pipe?
    Minimal ... would be a stretch.

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    Rollo Tomassee AKIRA's Avatar
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    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".

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    Mystic Teal
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    Quote Originally Posted by AKIRA View Post
    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

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