Vance & Hines V46851 Monster Squared Slip-On Mufflers Black for Touring 95-15 CC1I [INTERNAL]Vance & Hines Monster Squared Slip Ons Black Monster Squared slip ons carry forward the deep rich tone and performance of Monster Ovals in a bold configuration, highlighted by angular lines and massive 6. 25 hexagonal machined end caps At 6 1 4 wide with a plush matte black finish and signature chrome end treatment, Monster Squared slip ons make a real visual statement. With the high volume muffler design, Monster Squared produce excellent power gains