New FX K301 - Combo: Engine + Muffler 2131 + 659706 Manif. SM
• Maximum bottom – top end power
• Premium high-performance engine
• Ceramic rear ball-bearing
• Diamond coated crankshaft
Set of #650101 3-port FX engine K301, #659503 EFRA 2131 tuned muffler and #659706 short-medium radius off-road manifold.
650003 FX K301 - Combo: Engine + Muffler 2131 + 659706 Manif. SM