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Part number: 21-452R
Call For Availability: 800-299-1028
Product Details
AEM 21-452R Cold Air Intake System
Products specifications
Color RED
Filter Color Gray
Filter End Cap Finish Black
Quantity Sold as a kit.
Sleeve Color Black
Tube Color Red powdercoated
Tube Material Aluminum
California Restricted Not legal for sale or use in California
Clamp Material Steel
Clamp Style Regular
Intake Pipe Color / Finish Silver
Clamps Included 5
Product Style AEM Cold Air Intake System
Replacement Filter 21-203DK
Air Filter Color Red
Air Filter Height 5.125 in (130 mm)
Air Filter Large End Diameter 6 in (152 mm)
Air Filter Material Non-woven Synthetic
Air Filter Outlet Shape Round
Couplers Included 0
Intake Pipe Ports All intake tube ports needed for the specified applications are included
Mass Air Flow Sensor Adapter Included Mass Air Flow Sensor Adapter Included When Required
Vacuum Tubing Included No
Weight 6 lb (2.7 kg)
Cold Air Intake

AEM pioneered the Cold Air induction system for sport compact cars in 1994.

A Cold Air intake system relocates the filter outside of the engine compartment to deliver the coolest air inlet temperatures possible. Cooler air carries more oxygen, which translates into a more intense explosion in the combustion chamber to create more horesepower and torque. But thats only part of the power equation. Tuning the inlet pipe in length and diameter to match the engines resonance helps move more air to the cylinders (think of your engine as a big air pump), and no company on the market can tune an inlet as well as we can. We also monitor fuel trim correction factors and all OBDII sensors during R&D to eliminate leaning the engine out and/or throwing a check engine light.

Our Cold Air systems are dyno-proven and tested against the competition to create more useable power than any other system of their kind. Every AEM Cold Air induction system features the highest standards of construction and we are so confident in their fit and performance that we guarantee them for the life of your vehicle. All AEM Cold Air systems are either 50-state legal or pending (excluding Off Road and Hybrid systems), include a lifetime DRYFLOW Synthetic air filter and come with a limited lifetime warranty.

  • Outperforms every other Cold Air system on the market
  • Manufactured and assembled in the USA
  • 50-state legal or pending legality
  • Inlet constructed of lightweight aircraft aluminum and mandrel bent for maximum flow
  • Reinforced TIG-welded brackets and fittings deliver added durability
  • Utilizes a complete hardware kit with soft mounts for a guaranteed perfect fit
  • AEMs lifetime DRYFLOW Synthetic air filter is 99.4% efficient, filters to one micron, and never needs filter oil!
  • Comprehensive installation instructions, decals and license plate frame included
  • Available powdercoated in red, blue or silver, or with a mirror-polished finish
  • Guaranteed for life
Reviews
Add your review
P
Good fast shipping. Easy ordering.
C
Great Deal Thanks !
J
I have to say I was skeptical at first because autoplicity's price beat everyone by so much! Then I estimated my shipping charges with their system and that too was real cheap for this heavy item I ordered! I ordered it on Sunday and it showed up on Tuesday afternoon! So exceptional pricing meets exceptional shipping and my item is the real thing for a lot less leaves me completely satisfied with this company! I will be recommending them to my friends and family, thanks!
A
Very satisfied.  Good price and quick delivery.
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Fitment
Ford Focus
2005 Ford Focus ALL / LX / SE / ZTS / ZTW / ZX3 / ZX4 / ZX4 ST / ZX5 / ZXW
2004 Ford Focus ALL / LX / SE / SVT / ZTS / ZTW / ZX3 / ZX4 ST / ZX5
Return Policy
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