GPR Exhaust - SatInox Slip-On for Yamaha WR 450 F - 2003 to 2006 K-Type-Goggles Helmet DNA air filter set flow:

DNA air filter set flow: 167

with very high touring comfort

please check manual or bike specific note for more info

mechanical parts that are often susceptible

GPR Exhaust - SatInox Slip-On for Yamaha WR 450 F - 2003 to 2006 K-Type-Goggles Helmet DNA air filter set flow:GPR's Satinox silencer is made of 304 stainless steel. It has an oval shape with a diameter of 90mm. Product Features SOUND: Upgraded sound from stock exhaust. Although louder than stock but in compliance with the limits prescribed by law, this exhaust produces the softest sound of all the GPR exhausts. PERFORMANCE: Upgraded performance from stock exhaust QUALITY: Italian made with high grade welding WEIGHT: Lighter than stock exhaust Technical