KTM | 350 SX-F | 13-15 | Fitment Specs: Series: Signature; Style: RS-4; System Type: Full System; Tube: SS; Sleeve: AL; End Cap: CF |
KTM | 350 XC-F | 14-15 | Fitment Specs: Series: Signature; Style: RS-4; System Type: Full System; Tube: SS; Sleeve: AL; End Cap: CF |
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.