Original BETA parts FMF Gnarly Beta RR 18201947 €395.00 The FMF Gnarly line improves performance and torque in low revs to get you out of the mire. If you're looking for 4-stroke traction for your 2-stroke, this exhaust system is for you. Tough and rugged, this aggressive tube delivers the low- and mid-range torque and power required for off-road use. Heavy-duty 18 gauge steel construction Including... View