Bassani Black 4" Slip-On Mufflers, Black End Caps with Contrasting Flutes 7B27KB Bassanis new slip-on mufflers are designed to enhance the looks and performance of your Triumph Give your bike a unique style, performance and sound Slip-on muffler bodies feature 18 gauge stainless steel body construction and are available in a black or polished finish Each set includes tapered billet end caps and utilizes stock hardware for installation Made in the U.S.A.