FMF Powercore 4 Muffler 041584 1821-1966 Dos Tacos T-Shirt Replacement crown pad for Alpinestars

Replacement crown pad for Alpinestars Supertech M10 and Supertech M8 helmets

Waterproof jacket for track use in wet conditions

Enhances existing complete gasket kits

Internal heel counter and toe box for enhanced structural rigidity

FMF Powercore 4 Muffler 041584 1821-1966 Dos Tacos T-Shirt Replacement crown pad for AlpinestarsDeveloped to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is usable and compatible with every style of riding Aluminum construction and stainless steel Hi Flo end caps make for the perfect balance of performance and strength Removable spark arrestor included