WSM Top-End Rebuild Kit - Platinum Series - +0.50 mm 54-306-12P Stainless Megabomb Header Tri-oval-shaped muffler rear seamlessly transforms

Tri-oval-shaped muffler rear seamlessly transforms into 4" round front 5" wide

O2 Sensor Bung with Block-Off

It offers that factory look and sound while giving you an increase in power over the stock silencer

Increases clutch performance and rider control

The 25IDS cartridges are designed and manufactured in house to the same standard as all our performance products using the highest grade aluminium which is hard anodized to improve performance and service internals

WSM Top-End Rebuild Kit - Platinum Series - +0.50 mm 54-306-12P Stainless Megabomb Header Tri-oval-shaped muffler rear seamlessly transformsTop quality piston kits Include pistons, rings, pins, clips, racing needle bearings, head and base gaskets, intake and exhaust gaskets