99 GT IRS?
Does the 1999 GT have the IRS or does it have the regular Ford 8.8? my friend wants to put 3.73s on his 99 gt 5-speed, this will be his first mod (besides K&N) along with something else...help decide for him! thanks
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1996 GT full exhaust and underdrive pullys: 14.6 @93 MPH
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