I have a 2010 Mustang GT Premium Automatic.
So far I have installed a C&L CAI and a custom Brenspeed SCT Tune.
I am already able to chirp 1st 2nd and 3rd gear.. The difference is amazing...
I am thinking about buying :
Pypes LT Headers w/OR x pipe, 3.73 Gears, Underdrive Pulley... How...