GPR Exhaust - SatInox Full Line for Yamaha WR 400 F - 1998 to 2000 Muffler with:dB Killer the Dunlop MX3S is used

the Dunlop MX3S is used on the best teams in motocross and supercross racing

Cordura® ripstop and 600D zonal paneling for durability

The insert consists of 4 layers

finely finished and black anodised

(DSP) for noise cancellation

GPR Exhaust - SatInox Full Line for Yamaha WR 400 F - 1998 to 2000 Muffler with:dB Killer the Dunlop MX3S is usedGPR'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