The SE Series, which fits various Harley-Davidson Baggers, Trikes and Softails, are non disc-based. The SE provides the most torque in the bottom-mid range.They are 3 dB louder than stock, but are SAE-J2825 sound compliant. The mufflers are steel, chrome-plated shells which include a steel core. The internal baffle heat shield keeps them bluing free.SuperTrapp SE Series Slip-Ons are compatible with 17 end cap options allowing riders to customize the look of theirs. SE’s are commonly known as the H-D Performance II muffler, which SuperTrapp’s 17 end cap options also fit.An Optional Replacement Core is available and sold separately which makes the SE Series Slip-Ons rebuildable. SE’s are compatible with chrome or black SuperTrapp True Duals as well as their Crossover Conversion Adapter Kit.SuperTrapp SE Series fit ’95 – ’13 Harley-Davidson Baggers, ’09 – ’13 Tri Glide and Street Glide Trikes, and ’97 – ’07 Harley-Davidson Softails.Visit SuperTrapp.com for specific applications and additional product information.