Universal Series Mufflers can be used in the fabrication of practically any exhaust system. The unit consists of a canister and tip, which must be welded onto custom piping. Sound levels must be controlled through piping diameter and the effective use of resonators. Please consult your local tuner or muffler shop for advice on sound level tuning. Super Silencers, capable of lowing noise levels up to 7 dB, are also available for purchase for 90mm and 115mm tip canisters. The Universal Series Mufflers are available in the popular Dunk and N-1 models.