This is the 3 port .21 Off-Road Ultimate M3X V2.0 Ceramic Competition Engine with Ultimate 2142 pipe combo. Like its predecessor M3X, the V2.0 is made by the prestigious Japanese...

At a Glance   Displacing a category-leading .20 cubic inches, the Losi 3.4 Performance Engine packs big block torque into a small block footprint. The result is unmatched power for...