Been working on this for about a year, getting very close to release version. Coming out for the M, 50i, & 35d. Will make 35i version too if enough demand. Massive difference on the 50i, was stuck at 515hp with stock intakes + stage 2 tune, downpipes & JB4. With new turbo inlets & intake power bumped to just a bit over 600hp and dropped 0-60 to 3.6 & 1/4 mile to 11.7. This is on a engine/transmission with 185k miles and no launch control.