RS4 Aluminum Stainless Steel Full Exhaust - For 14-17 YZ450F & 16-18 YZ450FX/WR450F

For 14-17 YZ450F & 16-18 YZ450FX/WR450F

• Color: Silver
• End Cap Material: Carbon Fiber
• Header Material: Stainless Steel
• Material: Stainless Steel, Aluminum, Carbon
• Muffler Quantity: 1
• Muffler Sleeve Material: Aluminum
• Removable Quiet Insert: Yes
• Type: Complete Exhaust System
• UPC: 0840025903906

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.