Ford Focus ST Forum banner

1 - 2 of 2 Posts

42 Posts
Discussion Starter #1
If you’re looking for a custom high-performance cold air intake system, that could provide you with the mind-blowing HP and torque gains during the closed- or open-course racing, the all-new Aluminum Black Cold Air Intake System by AEM deserves your attention. It is the newest, high-output air intake system from AEM intended for the race use only aimed to provide smooth airflow, and up to 7.8HP more than your stock air intake system.

Aluminum Black Cold Air Intake is a custom-designed system accurately tuned for your application to deliver maximum HP and torque gains. Each kit includes dyno-tuned air intake pipe and AEM’s non-woven synthetic, oil-free filter.

AEM® 21-860C - Aluminum Black Cold Air Intake System with Red Filter

Fits: 2013-2018 Ford Focus ST


This is a Race Only product that is to be used solely for competition. It cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. Shipping Restriction: CA, NY, ME.


Air Intake
3 Stainless Steel Worm Gear Clamps
1 Coupler


  • Air Filter Material: Non-woven Synthetic
  • Filter Color: Red
  • HP Gain: Up to 7.8 hp
  • Material: Aluminum
  • Replacement Filter: 21-2047DK
  • System Type: Cold Air Intakes
  • TQ Gain: Up to 7.1 lbs./ft.
  • Tube Finish: Black

  • Delivers more oxygen to the combustion chamber by drawing in cooler air
  • Custom designed and engineered to deliver maximum power for each specific vehicle
  • Every system includes the innovative, oil-free, high-flow AEM Dryflow™ air filter
  • Dyno-tuned air intake pipe constructed of mandrel-bent 6061 aluminum for smooth airflow
  • Comes complete with all necessary mounting hardware and comprehensive installation instructions
  • Backed by the AEM limited lifetime warranty
  • Proudly manufactured in the USA
Browse this page for more information about the new AEM Cold Air Intake System.​
1 - 2 of 2 Posts