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Bolt (14-17) Yamaha

Slip-On Mufflers

This unique 4-inch muffler features advanced acoustical tuning technologies for a deep rumbling sounds. The 4-inch round muffler front expands near the rear to 4.5-inches diameter.

The matte titanium finish on the aluminum tip matches the color of the stock bike's heat shields. And the satin black muffler includes a custom heat shield to smooth the transition from the stock head pipes to the Cobra muffler. The tip uses seven, 12-point bolts that also give the dished tip a distinctive, aircraft quality look.

The muffler comes with a 3-inch core encased in proprietary Cobra sound tuning materials with specific acoustical dampening and thermal insulation properties. The deep bass notes are made possible because of class-leading resonance absorption and prevention.

The frequency and location of the perforation patterns in the high-flo core creates significant sound scattering in the mid frequencies, which helps to enhance the low frequency tones. The high-flo core itself is a massive 3-inches in diameter which gives the muffler an aggressive look without the objectionable sound levels.

  • SKU:2527B
  • PRICE:367.95

Emissions Notice

The state of California considers aftermarket exhaust systems to be legal replacement parts for non-catalyst equipped motorcycles and/or if slip-on mufflers are installed downstream of the OEM catalysts.

California does not allow the use of aftermarket systems that remove original equipment catalysts, (except for racing use only) unless the Air Resources Board has issued an Executive Order for that system.

For California riders we offer Air Resources Board approved Fi2000 R ARB units. (ARB E.O. No. D-633-1). All other Fi2000 models are not legal for street use in California.