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Kooks headers w cated y-pipe

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Old 05-12-2004, 06:21 PM   #1
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Default Kooks headers w cated y-pipe

I had Kooks stainless steel headers with the cated Y-pipe installed yesterday @ Dez racing.

The results 24 rwhp & 15 rwtq.

car has SLP LID, Magnaflow Cat-back, Kooks 1 3/4 headers w/cats.LS1 Edit tune.

before headers 309 rwhp & 325 rwtq
after headers 333 rwhp & 340 rwtq
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Old 05-12-2004, 06:29 PM   #2
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Did you have any headers before the install or stock manifolds?
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Old 05-12-2004, 06:33 PM   #3
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Stock manifolds & cats.
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Old 05-12-2004, 07:00 PM   #4
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Nice, could be as much as a 30rwhp gain without the cats.
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Old 05-13-2004, 09:39 AM   #5
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3 QUESTIONS
what year is your car?
what trans?
how did the area under the curve look?
thanks
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Old 05-13-2004, 03:06 PM   #6
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2000 SS
M6
same gains in all rpm ranges.
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Old 05-13-2004, 03:06 PM
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