Two Brother V.A.L.E. M-2 Small Oval Aluminum Slip On Kawasaki Street Bike Exhaust - Size : Kawasaki Ninja 250R 2008-2011 Small, vertical, oval canister (4.85&quot;H x 3.75&quot;W) is available with an aluminum high-polish finish, black carbon fiber (filament wound) or natural titanium matte-grey color 2.25&quot; stainless steel, power core Packing consists of a first stage (stainless steel wool) and a second stage (high-temperature fiberglass) Comes with a billet, anodized, aluminum-inlet endcap Teflon coated, die-cast, magnesium-outlet endcap