This is a little Off topic. But seriously i cant believe i havnt seen anyone on here run one.

Water / Meth injection kit. I believe increases the fuels octane by up to 10 points. So combine water meth injection with 98 octane is like running on race fuel .. Also drastically cools intake temperatures. Only down side is its something you have to refill.

Good to setup with your boost controller if you want to go to 30psi though !