4-inch muffler body
4-inch machined aluminum, thin-line tip
2.5-inch high-flow core for superior performance
Acoustical engineering developments allow an incredibly deep sound because of intense, class-leading resonance absorption and prevention
Uses proprietary materials with specific acoustical dampening and thermal insulation properties
The frequency and location of the perforation patterns in the cores creates significant sound scattering in the mid frequencies, which helps to enhance the low frequency tones.
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.