How much HP will I loose?
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How much HP will I loose?
if i go with a 2.5" downpipe instead of a 3" with the bellmouth design and a borla cat back.will i loose alot of horsepower or will not be enough to notice?my mods are vishnu ecutek stage 0 samco i/c hoses and the borla cat back.the d/p will have a high-flo cat and that will be the only cat.thanks
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iTrader: (12)
Joined: Nov 2002
Posts: 18,369
From: Reno, NV
Car Info: 1993/2000/2001 GF4 mostly red
If you put a bellmouth 2.5" downpipe on your car, you will still gain horsepower over the stock piece, but not as much as if you went to a 3" system. The other advantage to the 3" system is that as long as all of the exhaust piping is 3", you can run a stage I map instead of 0 and make much more power. The new reflash will only cost you $175 since you have already paid for an EcuTek software license.
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gpatmac
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Apr 17, 2003 10:37 AM