JNZTRBO
15+ Year Contributor
- 33
- 0
- Aug 23, 2003
I have a 99 GSX that I am ready to mod and hopefully get into the low 13's. It already is equipped with a Hahn big16g, ACT clutch with 2600lb pp, intake and k&n filter, Hahn o2 housing, 3" dp, and 3" exhaust. What else should I buy to make this thing run hard. Thanks.