AEM 2012 to 2015 Subaru Impreza Air Intakes Make Adding Horsepower Easy
- Jun 2, 2016
If the shortest, most efficient path between two points is a straight line, it makes you wonder what automotive engineers have in mind when they design intake air ducting. A duct with twists and turns slows down air and creates turbulence. A straight duct, on the other hand, allows for the smooth flow of air and thus a greater volume of air reaches the engine. That's the concept behind the AEM 21-772C for your 2012, 2013, 2014 and 2015 Subaru Impreza.
The Subaru Impreza is powered by the FB20B 2.0 L horizontally-opposed four cylinder engine. The engine features double overhead camshafts and muscle car-like 10.5:1 compression ratio. The FB20B produces 148 horsepower at 6200 rpm and 145 lb-ft of torque at 4500 rpm, however, there is room for improvement. Virtually the same engine (displacement, bore, stroke, compression ratio, etc.) as installed in the Subaru XV Hybrid produces 160 horsepower. Noting the opportunity, AEM engineers developed the 21-772C cold air intake which they tuned and dyno-tested to improve acceleration and add a nice raspy engine sound. Installation is a relatively inexpensive process, adding an estimated 10 horsepower and nearly 10 ft-lb of torque to your Subaru Impreza as shown on the AEM dynamometer. The performance increases can be achieved via a DIY installation that takes around an hour with tools just about everyone should have in their garage. The results of AEM chassis dyno testing are that a stock Impreza 2.0L generated 116 horsepower and 111 ft-lb of torque. With the AEM 21-772C bolted to the test vehicle, horsepower jumped to 125 and torque increased to 117 ft-lb.
This noticeable improvement in power can be felt in everyday driving, whether it's accelerating away from a traffic light, margining onto a highway on ramp, or cruising along some steep roads. The key to AEM air intake systems is the non-woven synthetic filter media, a modern solution for controlling the quality of air that passes through it. The seven-inch AEM conical filter helps protect your engine from harmful road grit, and it's mounted right at the front of the car where it can take full advantage of the cool incoming air, protected by a shield to keep underhood heat out of the intake air. The air intake system comes complete with a seven-inch AEM low restriction air filter paired to a high quality, gunmetal grey finished intake tube. The AEM 21-772C air intake come with the necessary boots, clamps, and hardware for an OEM-type appearance. The kit also accommodates all factory emissions and vacuum lines. Existing mounting points are used for simple installation. Your AEM 21-772C is good for around 100,000 miles (depending upon your driving conditions) between cleanings. Clean-up is easy with an application of AEM 1-1000 synthetic air filter cleaner that loosens and dissolves dirt and grime build up on synthetic filters. Then you simply rinse the unit with water, let it air dry, and reinstall. AEM Air Intake System 21-772C fits the following Subaru Impreza models: For a list of all AEM cold air intake systems for the Subaru Impreza, visit the Subaru Impreza Air Intakes page. Use the Search by Car or Truck tool to find additional AEM performance upgrades for a specific vehicle. To find an AEM dealer near you, visit the AEM Dealer Search. |
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