Vance & Hines Monster Rounds Catalytic Slip-On Exhaust

Developed for the California market, Monster Round Catalytic slip-on mufflers are listed by the California Air Resources Board as an exempt aftermarket part under the Executive Order No. K-006-1. Under the grant of this EO, these slip-ons are permitted for sale and use with Vance & Hines Power Duals or Dresser Duals head pipes on all two-wheeled Harley-Davidson Touring models, including CVO models from 2007 through 2013.

Monster Round Catalytic slip-ons house two three-way catalytic converters and have been tested with Vance & Hines Power Duals or Dresser Duals to demonstrate that they meet emissions standards applicable in California.

The real benefit of combining Vance & Hines Power Duals or Dresser Duals with the new Monster Round Catalytic slip-ons lies in the movement of the catalytic converter from the front half of the exhaust (as it is in the original equipment exhaust) to the back half of the exhaust, which yields a significant reduction in heat felt by the rider. Monster Round Catalytic slip-ons make just as much power as standard Monster Round slip-ons, along with the same deep and mellow tone riders have come to love. And the finish is every bit as top-notch, sporting full coverage heat shields and machined billet end caps.

• CNC machined end caps.
• Full coverage heat shields.
• Fits saddlebags with extended skirts.
• Made in the U.S.A.
• Note: It is recommended that new exhaust gaskets and a proper jet kit be installed when changing an exhaust system on a carbureted motorcycle. It is recommended that new exhaust gaskets and a Vance & Hines Fuelpak be installed when changing an exhaust system on a fuel-injected motorcycle.

Emissions note: Approved under C.A.R.B. Executive Order (E.O.) No. K-006-1; E.O. permits use of catalytic slip-ons with V&H Power Duals or Dresser Duals, E.O. covers all two-wheeled Harley-Davidson 103 and 110 models from 2007 to 2013, and E.O. does NOT cover Tri-Glide models. In California, aftermarket part applications that have been identified specifically as replacement parts or have received an Air Resources Board Executive Order may be used on street and off-road motorcycles. All other emissions related aftermarket parts are for closed course competition use only. A list of replacement part and E.O. part applications can be found at vanceandhines.com/California.