4in down pipe on 97 12valve

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Feb 27, 2008 | 12:31 PM

12v silver bullet

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4in down pipe on 97 12valve

how much would a 4in downpipe cool my egt's and improve my throttle response

Feb 27, 2008 | 04:08 PM

avshi750

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RE: 4in down pipe on 97 12valve

might as well do the whole exhaust while you're under there and to see the most benifit.

with just the DP i would guess 50-75* +/- and a nice little extra bit of power all around.

Feb 28, 2008 | 02:54 PM

12v silver bullet

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RE: 4in down pipe on 97 12valve

well i already have 4 in from cat back

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