Quote Originally Posted by Bino0527 View Post
Ok guys that's good news it does have a 1 as the eight number so ok it's a gt but it had the gtp option on it. Cool my heart droped last night when I ran the vin. It has a hud, peformance shift button on it what made me run the vin was thhat it has the traction control button on it and has been disable. But as for the pully I think it's stock but I want to run a 3.4 on it like I said it does have headers on it and a 160 stat on it autolights plugs and I think a zzp computer but for sure I know it has the alternator mod on it. I should be safe to run a 3.4. How can I mesuer my pully so I don't buy the same pully agean. But I so happy to hear that my car is a gtp for real. I knew in my heart it was it has a stock boost Gage on it on the comuper screan. Hey but the pictures are on there way just got to down load them off my iPhone to my computer. But thanks guys a lot.
if you wanna measure, take a ruler and make sure it goes through the middle of the pulley. the 3.8" is the diameter unless i'm mistaken. and honestly, you're probably not getting the best performance with the 160 thermo and the colder plugs with a stock pulley. if you do in fact have a zzp tune, a 3.4 pulley should be fine. the best way to know is to put one on and scan for KR