MTF
FRF Addict
Just had a Roush installed on my truck and very happy. I don't plan on doing any work internal on my engine so the roush supercharger with a mild 93oct tune can put me in the low 600hp range (flywheel). This is all most recommend on a stock engine. It was a good match for my engine and what I wanted. If I was going to put more money into my engine and wanted more HP then I would of installed a Whipple. The Whipple will give you more room to grow. Both are good supercharges.
You have a costume Tune?
Because the Roush Stage 2 kit only has 590 fwhp.
The basic Roush kit is 525 fwhp.