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This Yoshimura RS-4 exhaust system was designed with one thing in mind, winning races. The RS-4 is a unique design with predicated power and a quiet earthy exhaust note that speaks volumes for performance. It was an obvious choice for the SX-F lineup.
350 SX-F from KTM was the perfect ideal for balance of performance and handling, power and size. The enthusiast riders are looking for more adventure, power and performance and with Yoshimura they have meet and exceed the expectations. They provide satisfaction when you ride and feel the bike, the ultra-light weight yet a maximum power exhaust to give.
Note: Full System is only compatible with Fuel Injected models.
Note: This system fits 350EXC-F and 500EXC only when license plate and turn signals are removed.
The work that went into developing the RS-4 muffler design paid big dividends in 2010 with Ryan Dungey winning the AMA 450 Supercross and Motocross Championship series as a rookie in the same year, and again in 2012 with the Yoshimura-backed GEICO Honda team winning both 250 Supercross Lites titles. That same R&D has been directed to developing the current generation RS-4 — a unique design that provides an unrivaled combination of power and a quiet exhaust note. The RS-4 features a Polyresonant duplex chamber, a two-staged stepped baffle and an innovative carbon cone end cap.
Yoshimura offers exhausts for KTM Dirt Bikes that give both performance and the right aesthetics. Yoshimura exhausts are broadly acknowledged as the best dirt bike exhausts accessible. Complete your KTM dirt bike exhaust system with Yoshimura and have the best off-roader built at a good price.