GPR Exhaust - SatInox Slip-On for Yamaha WR 450 F - 2007 to 2011 Muffler with:dB Killer-Link Pipe Our radiator protection »EXTREME« is

Our radiator protection »EXTREME« is designed to provide an optimal air flow

16 position rebound adjuster

Vented mesh panels improve breathability and airflow

carbon fiber

GPR Exhaust - SatInox Slip-On for Yamaha WR 450 F - 2007 to 2011 Muffler with:dB Killer-Link Pipe Our radiator protection »EXTREME« isGPR'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