Our tuning for the 1986-1993 V8 Camaro helps every vehicle from stock to modified gain performance and better driveability. Horsepower gains will depend on your setup, but vary anywhere from 10hp to 40hp, and also typically yield better gas mileage as well. We do not support 1986-1992 TBI V8’s. We will send you a chip to plug into your stock PROM and then into the PCM, you do not need to send in anything to us. After placing your order, please fill out an order sheet for your vehicle (here).