1999 LS1 HPIII Hypertech programmer, cheap.
Asking $75 shipped. It comes with everything you need to install it on your car. It is unmarried from the car.
It really makes a difference power wise. Kept me up with an 03 "stock" Cobra.
99 SS vs 03 Cobra
It really makes a difference power wise. Kept me up with an 03 "stock" Cobra.
99 SS vs 03 Cobra



