going to buy a ECU but dont know which one to buy there one in intense racing , an zzperformance an pcfy but which one would you recomend on a 1999 pontiac grand prix Gt . yeah do you also have to buy the shift knob an harness kit for it ??????????

I dont know which is better, but you dont need the kit, you can wire any old switch between a PCM pin (I think 21)and ground... There are directions for this mod on;

www.clubgp.com

http://www.rivman.com/perfshift.htm