Cobra Exhaust 4" Slip-On Muffler For Yamaha Bolt

This unique 4" muffler features advanced acoustical tuning technologies for a deep rumbling sounds. The 4" round muffler front expands near the rear to 4.5" diameter. The matte titanium finish on the aluminum tip is 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, almost aircraft quality look. The muffler comes with a 3" 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" in diameter which gives the muffler an aggressive look without the objectionable sound levels. 

Features:

• Hardware included
• Made in the USA