flowtech y-pipe
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Joined: Sep 2007
Posts: 173
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From: pittsburgh, pa
Car: 87' Trans Am GTA, 88' Trans Am GTA
Engine: 350 TPI
Transmission: 700R4
flowtech y-pipe
has anybody else used this with the stock manifolds yet? it says on the web site that "some modification may be required to fit stock exhaust". I'm about to start tomorrow. Anybody done it?
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