I have had my new SC430 now for about 6 months, and am looking for more power. I searched every where for places to find some after market performance stuff, zip. The closest I found was a air intake tube, that has the filter picking up hot under hood air. Thats a step backwards.
Being a serious performance nut for many years, I am looking for any, or all of the following.
1. Performance chip to get the max power out of the engine.
2. A Real performance exhaust system.
3. A lower ratio rear differential gear set. I would rather loose 10-15 MPH top end speed, and get more low end accedleration.
4. A torque conveter with a higher stall speed.
5. A transmission gear set with a wider ratio, to get a lower 1st gear.
6. A Roots type supercharger, to up the low end torque.
I am satisfied with the car in all areas, except low RPM torque below 3,000 RPMs.
Maybe there are some parts from other models that could be switched on the SC430 to get some of this.