T-6 Slip-On Exhaust. The T-6 Stainless Slip-On Silencer is designed for a rider looking for an inexpensive, easy-to-install, durable performance silencer that can bolt onto their stock head pipe. This slip-on silencer is constructed of stainless steel throughout the mid pipe and end-cap while the canister is constructed of aluminum for increased durability. Although the T-6 Stainless Slip-On will not pass FIM sound requirements seen in professional racing here in the states or in Europe, the T-6 Stainless Slip-On is a great option for any rider looking for an increase in performance on a small budget. A removable U.S.F.S.-approved spark arrestor comes equipped with this slip-on to make it easier for a rider to alternate between off-road and closed course racing. Improves performance. Stainless steel construction throughout mid pipe and end-cap. Aluminum canister construction.