I bought the ProSpeed Stage II ECU Rom and I am very happy with the results. My car has more power and torque in the low to mid range now and the idle is very steady and there is no hesitation.
I wanted to thank Brian for coming up with a viable product for us NA1 guys with I/H/E. This is a worthy mod.
Dennis
My before and after dyno plot. Only change was the ProSpeed Stage II ECU ROM tune.
I wanted to thank Brian for coming up with a viable product for us NA1 guys with I/H/E. This is a worthy mod.
Dennis
My before and after dyno plot. Only change was the ProSpeed Stage II ECU ROM tune.
