ok, so at 70 are you at 2500 with the 4.10's? i'm at 2000 at 65 with 3.27's. i was watching an old horsepower tv show and they put a flowmaster cat-back exhaust system on a 1996 gt, and picked up 16 horsepower. would the gains be the same on the PI mustangs, or alot different?
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2000 mustang gt, silver with black interior and manual transmission
current performance mods:
80mm pro-m with filter
c&l plenum
mac 70mm throttle body
mac underdrive pulleys
pro 5.0 shifter
3.90 gears
dynomax super turbo mufflers
diablosport predator programmer
future performance mods:
x-pipe with converters
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