i went out bought a auto modilessa kit a microsizers pro that came with a clear and a black nissan sklyine gt-r body and it was boosted i bought a hop up kit with a 2.6(my 5th 2.6) and the 12.1 gearing along with stableizers and i got two kit racers each had red gears (one came with a 2.2 and the other 2.6)