How do you remove speed limiter on 2004 grand prix?

Answer:

its programmed in to the computer. u will either have to buy an HP Tuners module or order a custom reprogrammed pcm from zzperformance.com

its programmed in to the computer. u will either have to buy an HP Tuners module or order a custom reprogrammed pcm from zzperformance.com

First answer by ID2777302786. Last edit by ID2777302786. Question popularity: 1 [recommend question].