12 and 14mm spark plugs

Shaped and fixed shin plate with lower air channels

corrosion-resistant stainless steel

allowing it to be easily and quickly adapted to best match the weather conditions

Ergonomic Features:

GPR Exhaust - Trioval Slip-On for Yamaha YZ 250 F - 2006 to 2009 Muffler with:dB Killer-Link Pipe 12 and 14mm spark plugsGPR'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