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How much hp increase with headers and catted x pipe?

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Old 01-19-2012, 07:24 PM
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Mach2
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Default How much hp increase with headers and catted x pipe?

2010 C6 1LT, MN6. 9000 miles. So far I have a Z06 intake horn, 160* T-stat, tune and Borla Touring axle back exhaust for 380 hp & 6100 rpm at rear wheels, 377 lb. ft. & 4400 rpm at rear wheels.

I'm going to add Kooks long tube headers and catted X pipe and a re-tune and wonder if the headers and X pipe will get it over 400 hp at the rear wheels.
Old 01-19-2012, 07:34 PM
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ITS STOCK
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Expect about 30whp
Old 01-19-2012, 07:39 PM
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Boomer111
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I picked up 22 both rwhp and tq, above a already tuned only ls3. 47 rwhp total from stock, with tune and headers catted, corsa 160 stat and vararam.

I lost 7 rwhp going to the ZO6 set up with the stock air box back in. More so with the Tq power.

Last edited by Boomer111; 01-19-2012 at 07:42 PM.
Old 01-19-2012, 09:13 PM
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Boomer111, you LOST 7 rwhp with a Z06 intake vs. the stock intake & silencer box???

Thanks Guys for the feedback so far.
Old 01-19-2012, 10:48 PM
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No, the hp loss was going from headers catted to the Z06 Manifold and cats with H pipe system and back to the stock air box. I believe the tune was more conservative also with the Z06 set up.

Last edited by Boomer111; 01-19-2012 at 10:50 PM.
Old 01-20-2012, 09:10 AM
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FloydSummerOf68
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~25 after tuning is pretty common

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