Originally Posted by FUBU
Thought thru were 63 mm etc..
Okay, but it will improve performance from stock
Tune + dcai + 64.7 mm pulley will improve good. If you have a 185 cp instead the performance will not be of such a difference. Barely noticeable or seen on the 1/4. Or am I wrong?
yes you are wrong!! dont know how else to tell you. unless you have driven a car with these mods you are unaware of what a few mm can do. get your setup race it then decide if you need more power. for example, grip grip laid down a 12.3 on stock street tires with a 181 spinning thru 2 gears