Hp gains?
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Joined: Mar 2002
Posts: 1,176
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From: Springfield, MO
Car: 92 T/A VERT
Engine: LB9
Transmission: AUTO
Axle/Gears: 7.5 / 3.42's
Hp gains?
What kind of gains should I expect going from an all stock exhaust to Hooker 1 5/8 headers, no converter and 3 inch cat back on an 87 L98 IROC?
Supreme Member
Joined: Jan 2001
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From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
As an estimate, I would say headers 15-20hp cat-back 10-15hp. That's around 30hp you're lookin at. I picked up 2mph in the 1/4 by adding the Hooker cat-back.
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