I just bought a 2008 Mustang GT bone stock. I bought Long tube headers, shorty x pipe, high flow mufflers, 62mm twin tb, CAI, coil overs, and a SCT Tuner. Will I have over 300 hp/torque to the rear wheels after that or still not enough with a 91oct Tune?
I did full exhaust (BBK shorty tuned-length headers, Pypes X-pipe, Pypes mid-muffler exhaust), AirRaid CAI, SCT tuner and I am pussing about 317rwhp. Full exhaust will give you a lot more than you think especially with a good CAI.