Khrome Werks 4 HP Plus Slip-On Mufflers For Harley Touring Khrome Werks 4 HP Plus Slip-On Mufflers deliver unmatched performance, distinct style, and deep, powerful sound. Engineered with a focus on enhancing both the aesthetic and auditory experience, these slip-on mufflers feature an absorptive baffle encased in stainless steel mat and high-temp fiberglass. This unique construction is what crafts the deep, resonate signature tone associated with Khrome Werks products, setting them apart in both quality and performance. Features: 4.0 16-gauge muffler body Available with the popular Ripper Baffle Two Year Warranty Sold in pairs 50 State Compliant Made in the USA