The Yamaha WR450F GPR Trioval slip-on exhaust delivers performance improvements for your motorcycle. This Italian-made exhaust system enhances power output while reducing overall weight. The Trioval series features a classic ovoid drop shape with a 100mm x 130mm diameter. The exhaust system creates a deeper sound note while maintaining legal noise limits. GPR constructs this system from polished 304 stainless steel with precision welding for maximum durability. Yamaha WR450F Exhaust Fitment Yamaha WR450F 2007 2008 2009 2010 2011 GPR Exhaust Information Removable DB Killer: Included Weight: 4.29 pounds (1.95 kg) Length: 15.75 Inches (400 MM) Finish: Polished Stainless Steel Link pipe: Included Catalyst: Not necessary for this product European Homologation: Yes Yamaha WR450F GPR Trioval Slip-on Exhaust Details Enhanced Performance: The slip-on design increases horsepower and torque output across the power band Weight Reduction: Lighter construction than stock exhaust improves handling and acceleration Superior Build Quality: High-grade 304 stainless steel construction with premium welding ensures long-term durability Easy Installation: Complete kit includes specific link pipe and mounting brackets for direct bolt-on fitment Warranty Protection: 2-year international warranty backs the Italian craftsmanship Sound Optimization: Produces a deeper exhaust note while staying within legal noise limits The Yamaha WR450F GPR Trioval slip-on exhaust delivers performance improvements for your motorcycle. This Italian-made exhaust system enhances power output while reducing overall weight. The Trioval series features a classic ovoid drop shape with a 100mm x 130mm diameter. The exhaust system creates a deeper sound note while maintaining legal noise limits. GPR constructs this system from polished 304 stainless steel with precision welding for maximum durability. Enhanced Performance: The slip-on design increases horsepower and torque output across the power band Weight Reduction: Lighter construction than stock exhaust improves handling and acceleration Superior Build Quality: High-grade 304 stainless steel construction with premium welding ensures long-term durability Easy Installation: Co