FACTORY EFFEX TC4 Cover - Bump - RMZ 450 21-28432 Complete Slip-On Muffler for Metric Cruisers these mufflers have a spun

these mufflers have a spun and louvered baffle

DME’s header is a 1 7/8″ to 3″ diameter step pipe 4 into 1

2007-2015 Yamaha WR 250 - - 2007-2011 Yamaha WR 450

Heavy-duty springs approximately 20% stronger than OEM

and add or remove fuel in low- or mid-range rpms Works with stock or modified engines

FACTORY EFFEX TC4 Cover - Bump - RMZ 450 21-28432 Complete Slip-On Muffler for Metric Cruisers these mufflers have a spunThe first specifically designed seat cover kit for today's 4 strokes Feature Dura Grip material that has integrated embossed top seat ribs that keep you positioned on the seat Color matched rear panel, raised OEM logos and interlock stitching for long lasting wear Bump version features soft cell seat foam technology for even more grip and control Easy installation; no cutting, sanding or filing required