Take a ka run 5psi and it will out do any sr giving its tunning 7-10psi. People even boost single slammers and put out good numbers and reliable too. Sr have forged internals which os why people buy them, their too lazy to build a ka. Sr are pretty much plug and play too I've done a few. I slide a n/a single slammer its fun, and Idc if it blows up cause the motor is cheap vs sr. I did just buy a rb20det that's something id get if I were you. Wiring can be a bitch but there are many write ups on it. Good luck with what ever you choose man.

Sent from my DROID BIONIC using Tapatalk 2