i have never done this but i am an expert when it comes to hoppin up R/C's. first you may want to play around with gear ratios, some "street settings" are not tough enugh to handle the beating. new tires, you dont have to buy offroad tires but it will help when you do look for em, kyosho has rally cars im sure they will have tires. larger suspention, obvious if your gonna be hitting jumps, with street clearance you'll destroy the thing, you want about 1/2" to 1" of clearance and remember allthough huge jumps may be fun they can wreck your car in a heartbeat. motor should be fine. all your screws and hardware may need some support, there not made for bangin around and getting airborne. track sounds like, well i guess all i can say about that is, "man i wish i had one in my back yard!!!"