Single Conversion Black California emission compliant: N There is a welded in o2 bung. This exhaust is a Race. Voodoo Exhaust are designed and produced by Voodoo Industries for the demanding motorcycle enthusiast! CNC mandrel bent stainless steel for perfect fit, master welded, custom designed and re-buildable Voodoo Exhaust baffle, and finished in show polish or black with laser etched Voodoo Exhaust logo. Utilizes stock headpipe, just remove catalytic converter/stock muffler assy. Mount using welded on mounting bracket and supplied clamp. No modifications to frame or bodywork! Order the Voodoo Phantom Core to lower sound output up to 6 decibels! Power Commander may be required for proper fuel management. Clamps, hardware when needed, and instructions are included Voodoo Exhaust Model Specific Information