Originally Posted by Steve Hellums

I just ordered the Renntech kit yesterday. They will remap your ECU for 91 or 93, take the red line up about 200 RPM and get rid of the speed limiter. They are claiming a 45 h.p. gain and 60 pounds of torque, also they don't sell a pulley kit alone. It's either a ECU upgrade or a pulley & ECU upgrade together. I went with them mainly because of the name and reputation, I believe they have been around long before all the other guy's. I was told that just doing a pulley kit would cause your supercharger to heat up too.