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Professionally engineered performance for 500 - 725 horsepower applications utilizing 50 - 75 lb/min turbochargers. The legendary APS front mount intercooler has quickly become the benchmark for all front mount intercooler systems for the Impreza WRX. Extremely high flow rates and massive temperature reduction - a level of performance that other manufacturers can only aspire to achieve. APS has now upped the ante even further with the release of the D/R 725 front mount intercooler system, specifically designed for very high horsepower Subaru WRX and STI engines.

Unlike other systems that require cutting of structural components at the front of the vehicle, APS has designed the D/R Series FMIC with a truly bolt-on replacement unit that not only maintains the structural integrity of the vehicle, but also forms the perfect mount to accommodate the largest FMIC available for a WRX and STI. Another bonus for the Subaru performance enthusiast is that the APS D/R Series FMIC maintains the stock fog lights! In the case of intercooling, where bigger is better, APS shoehorned the largest intercooler core possible into the WRX for maximum cooling capacity and engine performance.

With intercooler core dimensions of 9.5"" x 28"" x 4.5"" (24.1cm x 71.1cm x 11.4cm) for a surface area of over 266 square inches and a total intercooler core volume of 1,197 cubic inches (19,600 cm3) (the largest by far of aftermarket WRX and STI intercoolers) that's over 4.5 times the size of the standard top mount intercooler. The APS intercooler core is of internally finned construction and offers significantly enhanced flow and heat exchange performance over the standard intercooler and other front mount intercooler systems, particularly at high charge air mass flow rates.

Also, unlike other manufacturers of WRX intercoolers who reduce cost by using deeper cores of small frontal area, the APS D/R Series intercooler is designed with the optimum ratio of intercooler core surface area (over 266 square inches!) to intercooler volume (1,197 cubic inches). The result is an intercooler system with outstanding flow and cooling performance, particularly at high engine horsepower levels of 500 - 725hp. However, there is more to intercooling than size alone. Fully engineered light weight, cast aluminum end tanks ensure optimum charge air distribution throughout the entire cooling core for maximum charge air cooling and minimum pressure drop.

The reality of intercooler excellence in terms of performance equals:

• Largest intercooler surface area possible
• Optimal intercooler internal passage volume
• Lowest possible pressure drop
• Highest possible intercooler core efficiency

Matched to the turbocharger air delivery in lb/min In other words the greatest possible charge air temperature reduction with the lowest possible pressure loss at the rated flow of the turbocharger - Whilst maintaining good throttle response. DR650 Intercooler above available in Stealth Black or STI Silver An intercooler drops the charge air temperature, which enhances the combustion of the air/fuel mixtures. This more complete combustion of air fuel mixtures produces higher engine power. Intercooler performance is measured by the amount of energy (temperature) the intercooler can remove from the inlet charge air as well as the pressure drop across the entire system. It is important to consider the entire intercooler system and not simply the intercooler core itself.

FITMENT: 02-07 WRX/STI on backorder