Street 2T For all the most sophisticated two-stroke road motorcycles, Arrow have designed a specific range of mufflers that offer a particularly exciting performance. They are made entirely out of special ultra-thin sheet metal using hand workmanship with acetylene-torch welding on the expansion body. These mufflers are flanged manually in order to make the inner surface of the gas passage more uniform. The cylindrical-section silencer comes in either satin-finish aluminum and mixed carbon-Kevlar fiber, or in 100% carbon fiber. The Stradali 2T are finished using special clear paint and they are ideal for medium-high rpm ratings, offering a significant increase in maximum power without compromising performance at lower speed ratings.