horsepower gain

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05-17-2007, 08:05 PM

My01Z28

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horsepower gain

What's an approximate horsepower gain from full exhaust ?( Flowtech headers and ORY with a Borla cat back) Does 40 horsepower sound about right, maybe less?

05-17-2007, 09:51 PM

bluovlh8er

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RE: horsepower gain

laugh out loud. try 10

05-17-2007, 10:48 PM

My01Z28

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RE: horsepower gain

10 horsepower? thats pretty weak man im almost positive a header back gives you more than that

05-17-2007, 10:58 PM

74454bb

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RE: horsepower gain

maybe 15 or so

05-18-2007, 05:07 AM

o2camaross

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RE: horsepower gain

Id say 25-35.

05-18-2007, 07:16 AM

blackz87

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RE: horsepower gain

Try 20 HP +/- 5 HP depending on the system installed and the engine. My opinion, would be around 20 HP averarge with a good engine to start with. [sm=chattypair.gif]

05-18-2007, 10:39 AM

74454bb

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RE: horsepower gain

If you redid the computer for them then 20 to 25, if not then 15 to 20....It depends on the cfm rate of the muffler. I think the borla mufflers are close to stock.