Yoshimura Enduro Series RS-4 Stainless Full Exhaust System w/Aluminum Sleeve/Carbon End Cap for Yamaha WR450F 12-15

Yoshimura WR450F 12-15 RS-4 Stainless Full Exhaust, w/ Aluminum Muffler

The RS-4 offers a unique design that provides an unrivaled combination of power and a quiet exhaust note.

The work that went into developing the RS-4 muffler has paid big dividends in Off-road Racing; winning multiple Supercross and Motocross titles since it's inception. We've developed the current generation RS-4 based on that research & development, and the result is a unique design that provides an unrivaled combination of power and quiet exhaust tone. The RS-4 features a Polyresonant duplex chamber and two-staged stepped baffle for increased performance, while a carbon cone end cap finishes off its innovative styling.

• Pentagonal-shaped sleeve
• Front muffler cap functions as a polyresonant chamber which helps reduce noise
• Two-stage stepped baffle
• Turn-out carbon fiber end-cap
• Stainless steel header and tail-pipe
• Repack Kits, optional Inserts and Spark Arresters are available for all models

This product was designed to fit on a standard equipped motorcycle, as delivered from the factory. OE and Aftermarket accessories not found on a bike as delivered from the factory, may not be compatible with this product.

Enduro Series Exhaust System

In the Mid 90's Yoshimura didn't go to the dirt; the dirt came to Yoshimura. Enduro Series systems are an evolution of Yoshimura's early off road efforts crafting off-road exhaust systems. The Enduro Series are all equipped with USFS-approved spark arrestor, forest-friendly noise levels, and are tailpipe emissions compliant.