Used to launch mine EVERYWHERE - including handbrake to powerslide 180s in the rain never broke the box but the rear diff was about to fall off the back of it!

managed 12.2 1/4 with just a bleed valve and rear seats out! amazing off the line and do powerslide proper if you are really rough with it, otherwise it understeers.

Did the standard clutch and that was about it - v reliable