Built specifically for the MAZDASPEED6 4WD TURBO. Has special mounting tabs specific for MAZDASPEED6 Radiator shroud. Heavy duty all Aluminum radiator provides superior cooling for high performance applications. Bolts in stock location. Race car performance and quality for your race car or street car. Completely constructed from aircraft quality 6061-T6 aluminum alloy. Fully tig welded fixture built for accuracy. No epoxy bonding Furnace brazed core.. Exclusive multi louvered fin design for exceptional cooling. No need to run outlandish thick core radiator. CNC formed header tanks. Radiators are direct bolt in design that require no modification to any existing factory accessories or body work. Correct outlets and hardware bosses to accept factory fans and hoses. Race track and street proven. Pressure tested to 32 psi - far beyond actual cooling system safe operating pressures. (Core Support is not included )