Getting an X/H pipe without the cats will yeild some extra horsepower because you are removing the restriction. But some people here will agree with me that adding headers will not give a great increase with stock heads. At least thats how it is for the foxes but I know less about the newer stangs.
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85 GT 4bbl roller cam
2 ch. Flowmasters, O/R H-pipe
Performer intake and carb
milodon water pump, FMS 9mm wires, aluminum driveshaft, king cobra clutch
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