Cat back on?
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Joined: Apr 2006
Posts: 836
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From: Pgh PA
Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
Cat back on?
How much power will I lose replacing the cat. I don't have one now but I need it for inspection/emmissions. SLP shorties, 3" flowmaster on a 5.7 with SLP runners. I also have to replace the EGR and AIR pump, this is getting depressing, feel like I'm going backwards. Oh well, it's the law here. Any thoughts are appreciatted. Thanks
Last edited by Eagle223usa; Jun 25, 2008 at 10:16 PM.
Joined: Sep 2004
Posts: 1,320
Likes: 0
From: Verona Va
Car: 86 Trans Am,03 Yukon,92 Z28
Engine: 5.3, 5.3, lb9
Transmission: th350,4l60e,700r4
Axle/Gears: 3.73,3.73,2.73
Re: Cat back on?
maybe 5hp todays cats have come a long way. get a nice 3in high flow cat
Thread Starter
Senior Member
Joined: Apr 2006
Posts: 836
Likes: 0
From: Pgh PA
Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
Re: Cat back on?
Thanks screamin86, I am installing a Walker high flow 3" convertor. I was hoping it wasn't going to be a total boat anchor! Should quiet it down some though!
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