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The AEM cold air intake kit is comprised of the aluminum intake tube, connectors, and Dryflow filter

While the US version develops 123 horsepower from an engine block that can be covered by a sheet of paper, Europe gets a special 138 horsepower version, which in a 2,700 lb car makes for a swift ride. Not to worry. AEM has developed a cold air intake system for 2014-2016 1.0L EcoBoost Fiestas that adds an estimated nine horsepower at the drive wheels.

One key to the 1.0L EcoBoost’s power output, which on a displacement basis matches some of the best engines available, is the unique low-inertia turbocharger, which is capable of spinning at up to 248,000 rpm in order to reduce throttle lag.

In addition to turbocharging, the engine utilizes fuel injection that provides multiple injections per combustion cycle directly into the cylinders and DOHC Ti-VCT to control both intake and exhaust valve operation. While the cylinder head is cast in aluminum, the tiny engine block (which can be covered by a sheet of paper) is cast in iron to reduce warm up times.

Upon inspecting the 1.0L Fiesta, AEM engineers determined that there were several areas in the intake system that they were able to improve. First, the air box sits aside the engine in one of the warmest areas under the hood. Next is that its location removed it from much of the cool, fresh, outside air that’s you critical in developing power. And further, they determined that the engine would produce more power with a larger intake tube, particularly for overboost situations.

The intake tube passes down through where the OEM air box was located to reach fresh incoming air

A key to the cold air intake system is the AEM Dryflow filter. The AEM Dryflow filter is constructed from an innovative synthetic filter material. The oversized round tapered 21-2011DK AEM DryFlow filter is formed from this washable, non-woven synthetic filter medium optimized for air flow, filtration, and performance. Dryflow filters are so efficient that they’re able to capture up to 99% of all contaminants before they can reach your engine.

The AEM 21-816C cold air intake is a relatively straightforward DIY modification that takes just a few hours to install, with tools just about everyone has in their garage. The AEM 21-816C utilizes only factory mounting points, so there are no holes to drill or permanent modifications to make to your Fiesta.

All parts and instructions needed to install your new AEM 21-816C are included in the box

The AEM 21-816C is designed to fit the following vehicles:

2016 FORD FIESTA 1.0L L3 Fuel Injection - All Models
2015 FORD FIESTA 1.0L L3 Fuel Injection - All Models
2014 FORD FIESTA 1.0L L3 Fuel Injection - All Models

The AEM cold air intake kit for 2017 Corolla can be installed with simple tools in just a few hours

While officially code named the 2ZR-FAE, the engine is typically referred to simply as the 2ZR. It’s manufactured at Toyota’s engine plant in Virginia and has been in production since 2007. Both the engine block and the cylinder heads are cast from aluminum alloy with DOHC and 16 valves with dual variable valve timing with intelligence (VVT-i).

In stock form, the 2ZR produces 132 horsepower at 6000 RPM, and 128 lb-ft of torque at 4400 rpm. These figures come from tests of the engine not installed in a vehicle, so it’s representative of engine power at the flywheel. When measured at the drive wheels, with the transmission and drive train consuming power, the horsepower could be as much as 20 percent lower.

In order to raise horsepower and torque, the engineers at AEM analyzed the layout of the air intake system on the 2017 Toyota Corolla and recognized there was a route to more power. Not to take anything away from Toyota engineers, but their responsibilities in creating an intake include variables like cost down to the penny and how many seconds it takes a worker to install the intake.

The AEM Dryflow air filter has been relocated to the front of the car to catch cool intake air

The solution arrived at by AEM is a unique system designed, tuned, and dyno-tested to fit specific Toyota Corolla models. The 21-814C cold air intake system relocates the air filter low and towards the front of the car where it’s exposed to cooler air, and away from high underhood temperatures. The cooler air is then channeled through a gunmetal-gray mandrel-bent aluminum intake tube directly into the throttle body. The factory PCV and MAF sensor mount directly on the intake tube, connected by a provided extension harness.

AEM Dryflow filters use an innovative high-performance synthetic filter material. The large oval 21-2127DK AEM DryFlow filter is formed from a washable, non-woven synthetic filter medium optimized for airflow and performance with sacrificing filtration. Dryflow filters are so efficient that they capture up to 99% of all contaminants before they can harm your engine.

The AEM 21-814C cold air intake is a relatively straightforward DIY modification that takes just a few hours to install, even for someone with little mechanical experience. Tools required are those that just about everyone has in their garage. The AEM 21-814C utilizes only the factory mounting locations, so there are no holes to drill or permanent modifications to make.

Everything needed to install your new AEM 21-814C is included in the box

The AEM 21-814C is designed to fit the following vehicles:

2017 TOYOTA COROLLA 1.8L L4 Fuel Injection - All Models

An AEM Dryflow replacement filter helps your Equinox or Terrain breathe better

This is the case with GM’s compact Sport Utility Vehicles, the Chevrolet Equinox and the GMC Terrain. From 2010 through 2017, despite the fact that several different engines have been available, if you own one equipped with a 2.4L, 3.0L, or 3.6L engine, they all utilize the same air filter. And fortunate for the owners of those vehicles, AEM manufactures the 28-20439 replacement filter for their vehicles that will both improve power and response as well as reduce the number of filters you need to purchase over the life of the vehicle.

The applications are:

2010 - 2017 Chevrolet Equinox and GMC Terrain equipped with a 182 horsepower GM Ecotec LEA 2.4L four cylinder engine. The engine features a DOHC aluminum cylinder head with continuously variable valve timing, aluminum pistons with jet-spray cooling, and direct fuel injection driven by a high-pressure mechanical pump.

The air filter is easy to access, located inside the air box on the left side of the photograph

2013 - 2017 Chevrolet Equinox and GMC Terrain equipped with a 301 horsepower GM High Feature LFX 3.6 L V6 engine. The engine offers the same features as the LF1 with a new cylinder head design, larger intake valves, revised camshafts, new fuel pump and injectors, stronger and lighter weight connecting rods and across-the-board E85 capabilities.

AEM replacement air filters combine some of the best elements of cotton air filters into a next-generation Dryflow air filter. This new three-dimensional filtering medium is red in color.

The AEM 28-20439 uses both depth loading and structural screen wire to enhance airflow capabilities for better engine performance. The incremental airflow is designed to add power as the engine management system recognizes the increase in available air and adds incremental fuel, the result being a potential increase in power.

Everything needed to improve the airflow of your Equinox or Terrain is included in the box

The only maintenance required for your AEM 28-20439 replacement filter is a service easily completed on your own. At intervals of 50,000 miles (depending on your driving conditions) utilize a AEM air filter cleaning kit to clean and re-oil your air filter -- bringing it back to like-new condition and ready for another 50,000 miles of driving. Your one AEM air filter is designed to last for the lifetime of your vehicle, which AEM guarantees will last for the life of your vehicle.

The AEM 28-20439 is designed to fit the following vehicles:

2017 GMC TERRAIN 3.6L V6 Fuel Injection - All Models
2017 GMC TERRAIN 2.4L L4 Fuel Injection - All Models
2017 CHEVROLET EQUINOX 3.6L V6 Fuel Injection - All Models
2017 CHEVROLET EQUINOX 2.4L L4 Fuel Injection - All Models
2016 GMC TERRAIN 3.6L V6 Fuel Injection - All Models
2016 GMC TERRAIN 2.4L L4 Fuel Injection - All Models
2016 CHEVROLET EQUINOX 3.6L V6 Fuel Injection - All Models
2016 CHEVROLET EQUINOX 2.4L L4 Fuel Injection - All Models
2015 GMC TERRAIN 3.6L V6 Fuel Injection - All Models
2015 GMC TERRAIN 2.4L L4 Fuel Injection - All Models
2015 CHEVROLET EQUINOX 3.6L V6 Fuel Injection - All Models
2015 CHEVROLET EQUINOX 2.4L L4 Fuel Injection - All Models
2014 GMC TERRAIN 3.6L V6 Fuel Injection - All Models
2014 GMC TERRAIN 2.4L L4 Fuel Injection - All Models
2014 CHEVROLET EQUINOX 3.6L V6 Fuel Injection - All Models
2014 CHEVROLET EQUINOX 2.4L L4 Fuel Injection - All Models
2013 GMC TERRAIN 3.6L V6 Fuel Injection - All Models
2013 GMC TERRAIN 2.4L L4 Fuel Injection - All Models
2013 CHEVROLET EQUINOX 3.6L V6 Fuel Injection - All Models
2013 CHEVROLET EQUINOX 2.4L L4 Fuel Injection - All Models
2012 GMC TERRAIN 3.0L V6 Fuel Injection - All Models
2012 GMC TERRAIN 2.4L L4 Fuel Injection - All Models
2012 CHEVROLET EQUINOX 3.0L V6 Fuel Injection - All Models
2012 CHEVROLET EQUINOX 2.4L L4 Fuel Injection - All Models
2011 GMC TERRAIN 3.0L V6 Fuel Injection - All Models
2011 GMC TERRAIN 2.4L L4 Fuel Injection - All Models
2011 CHEVROLET EQUINOX 3.0L V6 Fuel Injection - All Models
2011 CHEVROLET EQUINOX 2.4L L4 Fuel Injection - All Models
2010 GMC TERRAIN 3.0L V6 Fuel Injection - All Models
2010 GMC TERRAIN 2.4L L4 Fuel Injection - All Models
2010 CHEVROLET EQUINOX 3.0L V6 Fuel Injection - All Models
2010 CHEVROLET EQUINOX 2.4L L4 Fuel Injection - All Models

The AEM cold air intake kit is comprised of the aluminum intake tube, heat shield and Dryflow filter

The 2.0L inline turbocharged four-cylinder engine features a die-cast aluminum block complemented by an aluminum DOHC cylinder head. The engine features direct fuel injection and multiple-spark ignition. Compressed intake air passes through an air-to-air intercooler that lowers the charge air temperature before it enters the combustion chamber. On the exit side of the turbo, a vacuum-controlled wastegate improves efficiency. The engine is backed by a seven-speed automatic transmission.

AEM Dryflow filters provide excellent filtration, long service, and easy cleaning without filter oil

The AEM Dryflow filter utilizes a washable, non-woven synthetic filter medium optimized for high air flow, excellent filtration, and improved performance. In fact, a Dryflow filter captures up to 99% of harmful contaminants before they reach your engine.

Intake air exits the filter and travels through a free-flowing aluminum intake tube that easily connects to your vehicle’s factory intake to significantly increase air flow into your Infiniti engine. With more air flowing through the application-tuned gun metal gray intake tube, the engine develops more horsepower and more torque.

The AEM 21-807C cold air intake is a relatively straightforward DIY modification that takes just a few hours to install, even for someone with little mechanical experience. Tools required are those that just about everyone has in their garage. The AEM 21-807C utilizes only the factory mounting locations, so there are no holes to drill or permanent modifications to make.

The 21-807C cold air kit replaces the factory air box with no modifications to the car required

You can purchase the AEM 21-807C cold air intake factory direct for your 2016 Infiniti Q50 here on the AEM site, as well as the AEM replacement filter 21-2128DK and the AEM 1-1000 synthetic air filter cleaner.

The AEM 21-807C is designed to fit the following vehicles:

2016 INFINITI Q50 2.0L L4 Fuel Injection - All Models

The AEM 21-815C intake for Audi A4 provides a larger air box to fit an oversized Dryflow filter

The turbocharged four-cylinder engine is comprised of a cast-iron block and aluminum cylinder head. The valvetrain is of a double overhead camshaft (DOHC) configuration, with four valves per cylinder controlled by the Audi valvelift system. A bore of 82.5 mm and a stroke of 92.8 mm provides a displacement of 1984 cc, rounded up to 2.0 L. The 2017 A4 engine produces 252 horsepower and 273 lb-ft of torque.

The 21-815C has been developed by AEM engineers to take advantage of Audi’s use of forced induction. As the Audi A4 is turbocharged, it has a greater capacity for increased horsepower over normally-aspirated engines. By packing the turbocharger to capacity with cool, fresh intake air the engine’s Electronic Control Unit (ECU) will respond by adding more fuel. The equation is simple: more air plus more fuel equal more power.

If you’re familiar with turbocharged engines you recognize that the act of compressing the intake air heats it up considerably, as a function of how much the turbocharger pressurizes the incoming air. Internal combustion engines work best with cool intake air, so an intercooler is typically installed between the turbocharger and the intake ports. A cold air intake system actually assists your engine’s intercooler, as it delivers cooler air to the turbocharger, the output of which is lower in temperature, supplementing the drop in intake temperature the intercooler is designed to deliver.

The AEM air box is assembled outside the car for simple and easy installation using OEM hardware

The filter itself is an oversized AEM 21-209DK Dryflow filter with a 7.5” base diameter. The Dryflow filter is constructed of an innovative high-performance synthetic filter material. The washable, non-woven oil-free synthetic filter medium has been specified for its ability to deliver high air flow, excellent filtration, and improved performance. In fact, a Dryflow filter captures up to 99% of harmful contaminants before they can reach your engine.

While AEM Dryflow air filters typically do not require service until after about 100,000 miles of normal driving, a window is provided through which you can inspect the filter at any time. There’s also an AEM logo burnished on the window, so when your raise the hood on your A4 at the next Saturday morning “Morning Beverage and Motors” get-together everyone present will recognize you’re serious about performance.

Despite the fact that the air box needs to be assembled outside the car, the construction and installation of the AEM 21-815C cold air intake is a relatively straightforward DIY modification. The entire process should take just a few hours to install with just a few common hand tools you probably already own. The AEM 21-815C utilizes only the factory mounting locations, so there are no holes to drill or permanent modifications to make.

The tapered cylinder shaped AEM Dryflow air filter is made from an oil-free, synthetic filter media

The AEM 21-815C is designed to fit the following vehicles:

2017 AUDI A4 QUATTRO 2.0L L4 Fuel Injection - All Models
2017 AUDI A4 2.0L L4 Fuel Injection - All Models