Were can I get a longer lead for my GTX.

Also does it have to be run with the capasiter with a 19 turn 4cell.

Thanks

With the GTX yes, on the LRP Quantum 1,2,3 you can get by without using them. You may need a receiver pack if you notice car starts to stutter or hesitate near the end of a run with brushed motors, but with 4200 and higher you may have enough voltage at the end.