The AFCO Double Pass Heat Exchanger provides additional cooling capacity and horsepower, useful for serious street performers. This direct bolt-on replacement upgrade is compatible with all 2003 to 2004 SVT Cobras that have a supercharged DOHC 4.6L V8 engine. Featuring an all-aluminum, dual pass design, the heat exchanger can essentially disperse the extra heat given off by a supercharger. This lowers the temperature of the intake charge. It is 100% TIG welded by hand for strength and durability.