S3 PISTON EXHAUST,72,470MM

PISTONS - S3 GAS GAS TRIAL PRO AND EDITION Composition & treatment:• Top quality Aluminium-Silicium alloy• Casted or forged• Molybdenum disulfide protective layer.• Equiped with nitrided steel rings Features:• Lightweight and resistant• Limits the vibrations• The engine will build up revs faster The kit includes:• 1 Piston• 2 Rings• 1 Pin• 2 Snap clips