AEM 15-17 Subaru WRX STi 2.5L H4 - Cold Air Intake System - Wrinkle Black

21-735WB
  • Sale
  • Regular price $291.99


Part# 21-735WB

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 that's only part of the power equation. Tuning the inlet pipe in length and diameter to match the engine's 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
* AEM's 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

Description
AEM Cold Air Intake System
Air Filter Color
Red
Air Filter Height
9 in (229 mm)
Air Filter Material
Non-woven Synthetic
Air Filter Outlet Shape
Round
Clamp Material
Stainless Steel
Clamp Style
Regular
Clamps Included
3
Couplers Included
Estimated HorsePower Gain
32 HP @ 5400 RPM
Horse Power Increase
32 HP
Intake Pipe Color / Finish
Wrinkle Black
Product Style
AEM Cold Air Intake System
Replacement Filter
21-2029D
RPM
5400
Weight
8.9 lb (4 kg)
Intake Pipe Material
Aluminum
CARB EO Number
D-670-18
Title
AEM AEM-21-735WB AEM Cold Air Intake System
Estimated Horse Power Gain
32 HP @ 5400 RPM
Filter Color
Red
Filter Material
Non-woven Synthetic
System Type
Cold Air Induction
Mounting Hardware Included
Yes
Product Box Height
12.25 in (311 mm)
Product Box Length
20.25 in (514 mm)
Product Box Width
12.25 in (311 mm)
Street Legal In All US States
See Application Link Above
TUV Approved (Europe)
No
Air Box Included
No
Air Filter Outlet Width
2.75 in (70 mm)
Air Filter Washable
Yes
Clamp Color/Finish
Natural
Coupler Color/Finish
Not Applicable
Intake Pipe Outlet Width
2.75 in (70 mm)
Mass Air Flow Sensor Adapter Included
Mass Air Flow Sensor Adapter Included When Required
Oil Included
No Filter Oil Required
Package Material
Paperboard
Package Type
Box
Warranty
Limited Lifetime
Intake Pipe Inlet Length
19 in (483 mm)
Intake Pipe Inlet Shape
Round
Intake Pipe Inlet Width
2.75 in (70 mm)
Intake Pipe Outlet Length
19 in (483 mm)
Intake Pipe Outlet Shape
Round
Air Filter Height
9.00 in. (229mm)
Item Weight
8.9000 lbs.
Product Box Height
12.25 in. (311mm)
Product Box Length
20.25 in. (514mm)
Product Box Width
12.25 in. (311mm)
Air Filter Element Washable
Yes
Air Filter Oulet Width
2.75 in. (70 mm)
Clamp Color
Natural
Coupler Color
Not Applicable
Intake Pipe Inlet Length
19.00 in. (483 mm)
Intake Pipe Inlet Width
2.75 in. (70 mm)
Intake Pipe Outlet Length
19.00 in. (483 mm)
Intake Pipe Outlet Width
2.75 in. (70 mm)
Mass Air Flow Sensor Included
Mass Air Flow Sensor Adapter Included When Required
Clamp Quantity
3
WARNING CA Proposition 65
Yes
WARNING CA Proposition 65 Message
WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
Couplers Included
None
CARB EO Number
D-670-24
Intake Pipe Color
Wrinkle Black
Prop 65 Warning
WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 (C, R or CR)
CR
Prop 65 - Short Label
WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 Warning Label
https://www.knfilters.com/images/l/prop65.jpg
Prop 65 Yes/No
Yes
Air Filter Height
9.000 in. (229mm)
Air Filter Outlet Width
2.750 in. (70mm)
Couplers Included
No
Intake Pipe Inlet Length
19.000 in. (483mm)
Intake Pipe Inlet Width
2.750 in. (70mm)
Intake Pipe Outlet Length
19.000 in. (483mm)
Intake Pipe Outlet Width
2.750 in. (70mm)
Item Weight
8.900 lbs. (4 kg)
Product Box Height
12.250 in. (311mm)
Product Box Length
20.250 in. (514mm)
Product Box Width
12.250 in. (311mm)
Replacement Filter
21-2029DK
WARNING CA Proposition 65 Message
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov