Yeah I actually paid $350 for the engine. And my next upgrade is def the spektrum dx3s. Most of the upgrades arent that expensive. Just a few are gonna be more then the others. like the torsen center diff. the carbon fiber upgrades are not that expensive. the exhaust is gonna be $70 a piece need 3 different pipes. And then new rims and tires. I know for that much money I could have just bought a kyosho MP9 or something.