Substantially revised for 2003, the APS dual entry top mount intercooler with twin induction to better spread the cooling effect on the incoming charge is designed for maximum street performance on any MY01 onwards WRX or STI. With the significantly lower pressure drop (less than 0.02 Bar / 0.3 psi at 240 kW / 320 hp across the intercooler and 1.6 psi total pressure drop including the throttle body), it's a perfect partner for a high output roller bearing turbocharger.

   For optimum performance, the intercooler core itself is internally finned with large internal charge air channels. This results in huge cooling capacity with very high contact area for heat transfer and the highest volumetric air flowrate. Just as importantly, the APS cast alloy end tanks ensure even charge air distribution through the intercooler core without "hot spots" commonly found in aftermarket intercoolers.

   Please note that the APS TMIC requires the APS one piece compressor discharge duct for correct installation. This high flow casting has superior flow to the two piece STI component and vastly superior durability to the standard plastic WRX duct.