Here's how the plan went with my '02 GT
bone stock - 14.6@95 MPH 2.0 60'
shorty headers + short throw shifter
14.2@97 MPH
diablosport predator off the shelf tune
14.036@99.98
at that point (so close to both benchmarks I was aiming for..) I said screw it.. and went for 4.10 gears
someone blew a stopsign and tboned the car before I had a chance to even test them out..
but if I were to get another 99+ GT I'd do the exact same mods again.. 'cept I'd switch the headers with the gears...