ORIGINAL: Colt4g63
The JX .21 is an outstanding engine. All the performance of a Speed with a cheaper price tag. You wont be disapointed... I can run ANY engine that i want being that i do mod these mills for a living... And the JX is my ''personal'' 1st choice for truggy or buggy. Everyone has there favorite engine and this is mine
that means a lot coming from you. with those statements i think this has been converted to a ninja thread. probably my next motor. how is it similar or different from a stock jpx21 in performance?