GPR Exhaust - Trioval Full Line for Yamaha XT 660 X-R - 2004 to 2014 Muffler with:dB Killer-Catalyst This new two-layer system provides

This new two-layer system provides maximum versatility and comfort in any season or any weather conditions

starting on the date of purchase

Machined from 6061 Billet Aluminum

yet offers high rigidity and flexibility

boots and cable guide as necessary

GPR Exhaust - Trioval Full Line for Yamaha XT 660 X-R - 2004 to 2014 Muffler with:dB Killer-Catalyst This new two-layer system providesGPR's Trioval series is a GPR best seller, with a classic ovoid drop shape. It is made of hand polished 304 stainless steel and has a diameter of 100mm. 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