[99S351]

That didnt make much sense to me that there were 2 computers either. I mean you'd have to split up the wiring harness a lot to make it connect up to 2 PCMs as well as finding room for them to fit in the compartment on the passenger footwell where it goes. I talked to Underground Racing one day here a while back and he told me they dont do S351s anymore but he gave me the name and # of a guy that did their cars. This guy himself had a laser red 99 coupe that was for sale on Perf Autos. a couple years ago. It sold and he wished he had it back. This guy is still in the Charlotte area though and told me to stop by if I wanted anything done to mine but I told him I was in AR and it wasnt quite that easy lol. He seemed pretty knowledgeable about them though. He told me to do a powerpipe and a off road pipe and a tune and it would be big improvement over stock. Also, Mark L at Performance Autosport has tuned a few S351s so that would be a viable alternative as well.