Yoshimura RS-4 Stainless Slip-on Muffler 2014-18 Yamaha YZ/WR250F/X | 231012D320

Introduction

Fitment:

Yamaha WR250F 2015-2018
Yamaha YZ250F 2014-2018
Yamaha YZ250FX 2015

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
• Carbon fiber end-cap
• Stainless steel tail-pipe
• Weight: 0.3 lbs lighter than stock configuration
• Repack Kits, optionalInsertsandSpark Arrestersare 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.

Attention international customers: This product was designed and tested to be compatible with vehicles in the U.S. marketplace only. Compatibility, including fitment and performance, may vary by marketplace.

SIGNATURE SERIES EXHAUST SYSTEM

Introducing Signature Series by Yoshimura – an offering of exhaust systems that a dealer can install with confidence. Our Signature Series lineup is the answer for today’s dealer who is faced with a challenging marketplace. The applications for the Signature Series line cover the entire powersports spectrum, including many of our off-road applications. Every one of our Championship Winning Motocross exhaust systems and nearly all of our ATV/Side-by-Side applications are members of the Signature Series Family. All Signature Series components are tested, documented, and marked as required by federal and state regulations.