The 335i has the 6th speed gearbox to help their weight move along. What's awesome about turbo cars is there's no hardware to replace, just upgrade the software to make huge gains. My old 300ZX TT went nuts when I upgraded just to the JWT chip, around a 60 hp increase! My torque in the GTI 1.8t jumped 60 ft lbs. I wish our cars had a dual clutch tranny like the VW 6 speed DSG. So XFIREX, what mods have you done to your SRT so far?