PRO DESIGN

Billet-machined design offers noticeable bolt-on performance gainsIncreased torque and power as a result of increasing compressionLarger water jacket area supplies more water; you get the ultimate in...

Replacement O-ring set for Pro Design Cool Head Shells. Yamaha -- Banshee 350 4x2 -- (1992, 1994, 1989, 1997, 1991, 1996, 1998, 1988, 1990, 1987, 1993, 1995, 2001, 2003, 2002, 2004, 2000, 2005, 1999,...

OEM replacement dome O-ring for Pro Design cool head shells Honda -- TRX250R FourTrax -- (1987, 1988, 1989, 1986); Suzuki -- LT-R 250 QuadRacer -- (1988, 1989, 1987, 1992, 1990, 1991)

Ends the mess when draining coolant from Yamaha BansheeCNC-machined aluminum plate replaces stock part; includes a 6mm bolt that you can remove to drain coolant without the mess caused when pulling...

Tapered venturi cooler reduces cooling system temperatures by 5-10??Installs in-line on the cylinder return lineIncreases the cooling efficiency of any water-cooled system

Tapered venturi cooler reduces cooling system temperatures by 5-10??Installs in-line on the cylinder return lineIncreases the cooling efficiency of any water-cooled system

CNC-machined aerospace quality stainless steel impeller won't distort when hot, unlike the stock plastic impellerDesigned for slower flow through the cooling system, keeping coolant in the radiator...

CNC-machined aluminum plate completely replaces the stock stator plateAdjustable +10?? to -10??, with advance/retard degrees stamped on the stator plate Yamaha -- Banshee 350 4x2 -- (1987, 2005,...