Alright here are the mods I have so far, the car has 135k on the top end of the motor(intake, supercharger, fuel rails, etc.) I have a 3.4 pulley, smaller supercharger belt to accomodate it, prj 10.4 mm racing plug wires, ngk tr6 plugs, 3 inch catless downpipe with an O2 simulator, zzp powerlog...