WOSSNER PISTON YAM XT,TT,SR500 '76-89 89.93MM +3.00MM O/S Model_Leatt Neck Brace 5.5 The K&N RK-3942 High-Flow Air

The K&N RK-3942 High-Flow Air Intake System increases engine intake airflow and delivers more horsepower & torque to your Harley-Davidson® motorcycle

Laser-cut steel construction is powder coated in an attractive matte black finish for improved durability and corrosion resistance

Less bulky and trapping more air than most insulation

Required for use with LED turn signals

WOSSNER PISTON YAM XT,TT,SR500 '76-89 89.93MM +3.00MM O/S Model_Leatt Neck Brace 5.5 The K&N RK-3942 High-Flow AirWossner is Germany's finest aftermarket forged piston and rod manufacturer and have over 25 years of experience in the high performance racing industry. Top European racers and FIM World Champions rely on Wossner for only the best pistons, rods and customer service. Features In house designed and manufactured; all forgings are produced in Wossner's company owned forging operation 4 stroke pistons are made using a double bridged forging design