Aluminum Water Cooling Radiators for KTM 250 EXC / 400 EXC / 450 EXC / 525 EXC Racing 2003-2007Fit for KTM 250 400 450 525 EXC RACING 2003 2007; KTM 450 525 MXC G RACING 2003 2005; KTM 450 525 EXC G RACING 2003 2006. Provides strong, quickly and durable cooling. Aircraft quality brazed aluminum and precision TIG welded provide increased heat and pressure tolerance, improved heat dissipation, increased durability, and improved cooling efficiency. High efficiency brazed aluminum cores, significant increase the efficiency of the cooling system.