I have maybe 20 packs through the car. I zipped an extra screw through the chassis into the rear bumper. And i ground on the rear brace and pushed it forward a hair so it would be on there tight. The dimensions are exactly the same and the rear end is like a brick house now. You need a strong rear end beacause it has a nose high attitude off of jumps and if you dont have proper throtle control you will stick the rear every time. I will throw in a orion evolution 10 double for 25 more.