The RPM Pro R muffler use a OEM look tip that transforms the factory 2.5" tip to a free flowing 3". This upgrade does not allow for use of the factory spark arrestor so RPM offers this spark arrestor insert that will fit any RPM Pro R tip. This USFS approved spark arrestor mesh is wrapped around our standard quiet core insert thus reducing DB's while remaining USFS compliant.
*Does not fit RPM Pro R Race Pipe