ALPINESTARS SMX-6 v2 Gore-Tex Boots - Black - US 12 / EU 47 2333017-1100-47 Guide Bushing Set Uses a single exhaust port

Uses a single exhaust port with a 3" core Unbelievably deep sound and increased performance over the stock system Tri-oval-shaped muffler rear seamlessly transforms into 4" round front 5" wide

000° F protection

Pre-curved sleeve construction for reduced fatigue and enhanced riding comfort

4" muffler body capped with a 4" machined aluminum dual-cut tip

ALPINESTARS SMX-6 v2 Gore-Tex Boots - Black - US 12 / EU 47 2333017-1100-47 Guide Bushing Set Uses a single exhaust portBoot upper incorporates innovative front, rear and calf area bellows zones Main upper material constructed from advanced microfiber for durability, abrasion resistance and a waterproof, highly breathable Gore Tex liner for all weather performance Ergonomic forefoot design streamlines the boot shape for improved feel for the motorcycle controls High modulus TPU injected shin guard, calf guard, shift pad and toe slider TPU lateral ankle brace protection