Yeah, UDP is the death of this car, not very good for the engine at all. Others cars it's not that bad, this car no good. Uh, lightweight. Carbon Fibre hood, lighweight racing rims, aftemarket exhaust. Remove the spare tire, back seats, stereo, get someone to make a full fibreglass or Carbon Fibre interior, Get racing buckets, umm, i dunno, theres more, I just can't think of anything. Lightwieght depends on how comfortable you want the car to be. If you still want music, but you don't need bass, take out the subwoofer and amp assembly. One of the biggest things you can do is the wheels. Lighter wheels means better acceleration, and better handling. Plus if you change the rims, you get to go to a tire compound of your choice. The C/f hood is more looks than anythingm but it does still remove weight from the car, so it's still effective.