Extend Port
04-25-06, 07:42 AM
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BRAP BRAP BRAP
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Extend Port
how much would it cost for an extend port for a 89 na gtu? also how much horsepower would it produce if you have the extend port with a 3" straight pipe with a racing beat header?
04-25-06, 08:58 AM
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Engine, Not Motor
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Porting involves several hours of work PLUS rebuilding the engine. So you're looking at least $1200 for a quality job. About a 20% HP gain is a good number to start with. Oh, and it will be LOUD with a header and open exhaust.
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