2012-2018 Ford Focus 2.0L Cold Air Intake: What Owners Noticed

2 min read
Ford Focus 2012-2018 2.0L four-cylinder engine bay with the airbox on the driver side

The third-gen Focus 2.0L sounds polite from the factory. Owners who fitted a full intake on these cars shared what changed, and the one thing to watch for in bad weather.

The Short Answer (TL;DR)

On a 2012-2018 Ford Focus with the 2.0L four-cylinder, a full intake mostly changes sound and response. Owners in this Focus Fanatics thread described it as much louder from medium to full throttle, a bit more peppy, and an easy install. One owner said the engine felt more responsive in the mid to high rpm range. Keep the filter where deep water can't reach it.

Ford Focus 2012-2018 2.0L four-cylinder engine bay with the airbox on the driver side

What owners noticed

  • Sound: "MUCH louder than stock from medium acceleration to full throttle," about the same as stock at light throttle. Another owner: "The noise is fantastic."
  • Response: "A bit more peppy, modest increased acceleration." Another owner said the engine was more responsive in the mid to high end.
  • Install: described as relatively easy. One owner who swapped an airbox lid said it took 5-10 minutes.
  • Looks: owners liked replacing the stock plastic with a cleaner setup.

The thread doesn't include dyno sheets for a full intake on the 2.0L, so we won't quote a horsepower number.

Diagram of the Ford Focus 2.0L intake path from filter and MAF to the throttle body

Watch the water

One owner with a low-mounted filter drove into deep standing water he couldn't see and hydrolocked the engine. The lesson: wherever the filter sits, don't drive through deep water. A kit that keeps the filter up in the bay behind a heat shield helps.

Fit tips

  • Check that nothing rubs on the wiring harness coming out of the fuse box. One owner had a box edge rub there on a tight-fitting kit.
  • Owners asked about disconnecting the battery after install. It isn't required, and it won't hurt, the same as a battery swap.

Picking the kit

Pick a kit made for the 2012-2018 Focus 2.0L, with its own heat shield and MAF mount. Confirm your year and engine first, since the ST and RS use different engines.

Cold Air Intake for Ford Focus (2012-2018) 2.0L

Shop the Cold Air Intake for Ford Focus (2012-2018) 2.0L

Driving a different Ford? Browse Ford air intakes and confirm year and engine.

FAQ

Will it drone on the highway?
Owners said it sounds about the same as stock at light throttle. The noise comes in from medium throttle up.

Does this fit the Focus ST?
No. This kit is for the non-turbo 2.0L. Confirm your engine before ordering.

Source and real install photos: Focus Fanatics thread "Best air Intake?". Credit to wesmertz, STUTX, HenryJye, FFhb13 and the other owners in the thread.