GPR Exhaust - Trioval Slip-On for Suzuki DR BIG 750 - 1987 to 1989 past type tag-Helmets - Modular and a hydraulic preload adjuster

and a hydraulic preload adjuster

504/505 Mobber versions (87-4790 & 87-4791) are DOT Approved

2016 - 2018 Yamaha YZF-R25

The hexagon profile allows the transmission of high forces and puts less strain on the edges of bolts or screw heads than a double hexagon profile

Kymco stock paper filter: 126

GPR Exhaust - Trioval Slip-On for Suzuki DR BIG 750 - 1987 to 1989 past type tag-Helmets - Modular and a hydraulic preload adjusterGPR'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