Heat sinks
hehehehehe. Yes they cost a huge amount. I am sure you don't just have a car and controller in your pit box do you. do you need fuel to run your car and a starter box to start your car (when it does) and a charger to run you battery packs in a nitro car. Oh and now how long does a nitro engine last these days. And we still do more laps than you
I am not saying that it's for everybody like the gas guys. But for electric it' not such a huge expense compared to what we run now when you add it all up.
Coxy.