(adsbygoogle = window.adsbygoogle || []).push({}); I figured out how to get some parts on cars, but I cant figure out the stage 4,5 engine upgrades, 6,8 pot brakes, and the throttle improvment. Aybody firugre this out yet?

none take them unless u hex edit the part in

well I know either the k's s13 or the sileighty can use the secret brakes.

most of the standard cars take the stage 4 5 turbo and the civic ek 97 takes the engine tuning 4 5