Hi, I am new here and I apologize for my simple question....I have a 225 TT from 2000, I did chiptuning on it along with 3" exhaust and downpipe and according to my 1/4 time (13,302 sec), weight and end speed (104,8 mph) I have appr. 285 hp now, which is fine but I want more....this is a great car and have everything I have been looking for but except a litle bit more power...

Can anyone give me a "good formula" for what to do, if I want to go for appr. 500 hp? Changes, cost, where to buy etc.

Thanks.
N

 

All this is more than spelled out in the TT section's FAQ and BT and high performance stickies.

 

Thanks!