Keep it under 600 RWHP, and you probably won't "need" to upgrade anything. It would be very wise to at least get better tires. There are quite a few of us in the Roush TVS camp with 530-600ish RWHP. A few replaced the clutch and/or driveshaft, but I think most haven't. In addition to the stock Roush parts, all I did was replace the tune (VMP) and pulley (79mm), and so far, so good. It hauls ass!Im trying to think what i need strengthen up on my car when i get the roush supercharger
Any advice will be greatly appreciated.