4 in. Monster Rounds Catalytic slip-on mufflers house three-way catalytic converters that 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 Black or Dresser Dual with the new Monster Round Catalytic slip-ons lies in the movement of the catalytic converter from the rear portion of the header system (as it is in the original equipment exhaust) to the muffler bodies, which yields a significant reduction in heat felt by the rider
Make just as much power as standard Monster Round slip-ons, along with the same deep and mellow tone riders have come to love
Non removable baffles
Will work with saddlebags with extended skirts
Includes finely sculpted full coverage chrome or black heat shields
Sold in pairs
Made in the U.S.A.
Notes: CARB Executive Order (E.O.) No. K-006-1
Requires use of Vance & Hines Power Duals or Dresser Duals headers to meet certification.
Not all products are legal for sale or use on pollution controlled vehicles. Check your local laws and the manufacturers information
Installation of a new exhaust system may change your motorcycles fuel-air mixture requirements. Please consult the manufacturer directly with questions regarding any modifications that may need to be made during, or after installing their product. If a jet kit or EFI controller is recommended please see the Intake/Fuel section for products available
Recommended Vance & Hines fuel management module: Fuel Pak FP3 (part number 2001886) For CAN Bus models only (Touring, Softail, Dyna and Sportster). Not compatible with V-Rod models
There is no warranty on exhaust pipes and mufflers with regard to any discoloration. Discoloration (blueing) is the result of tuning characteristics, cam timing, carburetor jetting, overheating, etc., and is not caused by defective manufacturing. See the CHEM/LUBES category for products that will help prevent or remove blueing.
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