I am looking into a 65mm throttle body..I was wondering how much hp would be gained and anything anyone else would know about it.
Thanks

 

What engine do you have. Bcause i thought that the stock size on the 3800 was 65mm form the factory. Do you mean the 68mm one. if so i have heard that there is a big increase in throttle response and then also more power on the top end.

I also have the 68mm TB wating to go on my car when i get home from college.

 

i have the 3.4 so i dont know if there could be a difference in stock size and what not...Thanks for the info

 

I don't remember what my stock throttle body size was but I have the zzp northstar throttle body kit and can tell you the throttle response is much improved. You will for sure need a tune if you change your throttle body though.

http://www.zzperformance.com/grand_p...&catid=113