WSM Piston Kit - Polaris 300 - +.25 mm 50-310-04PK F.I. Agroid™ MIPS® Helmet Reinforced seat area for enhanced

Reinforced seat area for enhanced rider comfort

comes with a removable USFS approved spark arrestor making it easy to alternate between off-road and closed course riding Machined aluminum muffler brackets for increased strength and durability Asymmetrical muffler configuration for increased packing volume Most systems equipped with a RC-4 Resonance Chamber for reduced sound output Machined mid pipe to headpipe joint for a better

2003 Kawasaki KLX 400 - - 2000-2007 Suzuki DR-Z 400 E - - 2000-2004 Suzuki DR-Z 400 - -

Quick-release attachment system for easy in-and-out access

Breathable mesh 3D liner with anti-sliding microfiber suede reinforcement on the heel area

WSM Piston Kit - Polaris 300 - +.25 mm 50-310-04PK F.I. Agroid™ MIPS® Helmet Reinforced seat area for enhancedQuality and construction that meets or exceeds OEM Feature improved E clip design Contain piston, rings, pin and clips Additional rings available separately Order one per cylinder Skirts have a nonabrasive, expansion retarding MOS2 coating to reduce heat and friction for added power and longevity MOS2 coating actually draws heat through piston walls and out the bottom Specially hardened tops add strength to ring grooves