K&N Apollo Cold Air Induction Systems incorporate a washable/reusable K&N High-Flow Air Filter within a protective shell. They come with custom mounting hardware to fit specific vehicle applications. The Apollo's shell reduces heat build-up and feeds cool air into your engine, resulting in improved volumetric efficiency and increased power gains. Apollo Cold Air Induction Systems allow for updating your vehicle's intake system while retaining a closed environment.PartNumber aem21-729C
Description AEM Cold Air Intake System
Air Filter Color Red
Air Filter Height 5 in (127 mm)
Air Filter Material Non-woven Synthetic
Air Filter Outlet Shape Round
Clamp Material Steel
Clamp Style Regular
Clamps Included 3
Couplers Included
Estimated HorsePower Gain 3 HP @ 6000 RPM
PartNumber kn57A-6023
Description Performance Air Intake System
Air Filter Color Red
Air Filter Height 4.875 in (124 mm)
Air Filter Material Cotton Gauze
Air Filter Outlet Shape Not Flanged
California Restricted Not legal for sale or use in California
Clamp Material Steel
Clamp Style Regular
Clamps Included 4
Couplers Included 1
Product Style 57i Series International Kits
Replacement Filter RC-5052
Type Gen I
Weight 6 lb (2.7 kg)
Title K&N 57A-6023 Performance Intake Kit
Air Filter Outlet Shape Round
Filter Color Red
Filter Material Cotton Gauze
Product Box Height 10 in (254 mm)
Product Box Length 10 in (254 mm)
Product Box Width 10 in (254 mm)
Street Legal In All US States No
TUV Approved (Europe) No
Air Filter Height 4.875 in. (124 mm)
Item Weight 6.0000 lbs.
Product Box Height 10.00 in. (254mm)
Product Box Length 10.00 in. (254mm)
Product Box Width 10.00 in. (254mm)
Title K&N 57A-6023 Performance Air Intake System
Air Box Included No
Air Filter Element Washable Yes
Clamp Color Natural
Coupler Color Black
Intake Pipe Inlet Shape Round
Mass Air Flow Sensor Included Mass Air Flow Sensor Adapter Included When Required
Oil Included Filter Is Pre-Oiled
Package Material Paperboard
Package Type Box
Air Filter Washable Yes
Clamp Color/Finish Natural
Coupler Color/Finish Black
Mass Air Flow Sensor Adapter Included Mass Air Flow Sensor Adapter Included When Required
Warranty 12 Months
Clamp Quantity 3