• 5 1/2" Monster Ovals crush the old saying that more power requires more noise
  • The ovalized mufflers give Monster Ovals twice the internal volume of other slip-on mufflers for better flow and more power
  • 4" Monster Rounds offer the same perfection in and performances as the Monster Ovals
  • 6 1/4" Monster Squared also feature a high-volume muffler design in either chrome or matte black finishes both with striking angled billet end caps
  • Stereo-friendly, Monster Mufflers yield a deep rich tone that's perfect for those cross-country tours
  • Encased in full-coverage one-piece formed heat shields with machined end caps in chrome or black, riders will be proud to show off their pipes wherever the road takes them
  • Sold in pairs
  • Made in the U.S.A.

Disclaimer: The California Air Resources Board (“CARB”) does not permit the use of aftermarket emission-related parts, devices, or systems that alter the performance of OEM emission-related devices unless CARB has issued an Executive Order, other than on racing vehicles on closed courses. Check your local laws and manufacturer's information.


Monster Slip-On Mufflers

Part #DescriptionSug. Retail Price
1801-0650Black/Chrome Monster Rounds Slip-On Mufflers$799.99


Part #DescriptionSug. Retail Price
1801-0310Chrome/Black Monster Ovals Slip-On Mufflers$849.99
1801-0311Chrome Monster Ovals Slip-On Mufflers$849.99
1801-0312Black/Chrome Monster Ovals Slip-On Mufflers$899.99
1801-0395Chrome Monster Rounds Slip-On Mufflers$724.99
1801-0647Chrome Monster Squared Slip-On Mufflers$899.99
1801-0648Black/Chrome Monster Squared Slip-On Mufflers$949.99