Cold Air Intake System

Special Price $399.99 Regular Price $449.99
In stock
SKU
AEM-21-485B
The AEM 21-485B Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle's restrictive factory air filter and air intake housing. This air intake system was designed, tuned and dyno-tested to fit specific Mazda RX-8 models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air filter is located above the passenger side wheel well which is designed to reduce intake air temperature and increase horsepower. The intake tubing is comprised of series of gradually expanding inlet pipes including mandrel-bent aluminum featuring a durable blue powder coated finish. This air intake system was developed to accommodate the engine's factory emissions control devices including the mass air flow sensor and breather hoses. The cone shaped AEM Dryflow air filter is made from an oil-free, synthetic filter media that can be used for up to 100,000 miles before cleaning is needed (depending on driving conditions). The air intake system is backed by AEM's Lifetime Limited Warranty. Some AEM air intakes are not legal for sale or use in California and other states adopting California emission standards while others are 50 state legal. View the 21-485B vehicle applications to determine the legal status for each vehicle.
  • Increased horsepower
  • Tuned and dyno-tested to improve acceleration and engine sound
  • Low restriction aluminum tubing
  • Air filter lasts up to 100,000 miles before cleaning is required (depending on driving conditions)
  • Washable and reusable oil-free filter media
  • AEM Lifetime Limited Warranty
Estimated Horsepower Gain8.4 HP @ 7300 RPM
Replacement Filter21-2109DK
Air Filter ColorRed
Air Filter MaterialNon-woven Synthetic
Air Filter Outlet ShapeRound
Clamps Included9
Clamp MaterialSteel
Clamp StyleRegular
Couplers Included2
Product StyleAEM Cold Air Intake System
Intake Pipe Color / FinishBlue
Intake Pipe MaterialAluminum
CARB EO NumberD-670-21
Street Legal In All US StatesYes
TUV Approved (Europe)No
Weight8.6 lb (3.9 kg)
Product Box Height14.94 in (379 mm)
Product Box Length22.2 in (564 mm)
Product Box Width14.5 in (368 mm)
Mounting Hardware IncludedYes
WarrantyLimited Lifetime
No cross references found for this part
+8.4

horsepower

Recommended Products

AEM Products

Engineered to outperform

Air Intakes

Air Intake Systems

Custom-engineered tubes deliver better airflow than you get with a stock intake. More air means better performance.

Air Filters

Air Filters

Using cotton gauze instead of typical folded paper, our filters increase airflow while providing excellent engine protection.

Search By Vehicle
*
Search By Dimension
The item you added to cart DOES NOT FIT your
This item fits your

The item(s) below fits your vehicle