ETX made mine, cost was $300(same amount MrSlick stole) Lately he is hard to get ahold of though. Anyway, the install is way easier than you think. The worst part is tapping the intake manifold and the thermostat housing for the sensors. Other than that you just wire those two sensors in then I just cut my factory injector harness and wired those to the MS then you just splice into the cps sensor(blue/white) and the TPS(forgot colors but easy to find out) and run a constant 12v power and a switched 12v power to the relay board(get a relay board it only takes 30 min. or so to solder) there, thats a write up, haha. Oh yea, and then since I have the zeitronix wbo2 I just ran the output wire from it to the relay board for the o2 reading(I'm pretty sure that covers everything on the install). Then you just gotta learn the MegaTune program, thats the step I'm on right now...