Air Boxes

K&N Round Air Filter Assembly 14in. ID / 4..12in. Height / 5.125in. Neck Flange / 7/8in. Drop Ba

Perrin 02-07 Subaru WRX / 04-11 STi Turbo Inlet Hose Replacement Hardware (For PSP-INT-401)

Perrin LGT / 08-11 WRX / 08-11 STI Black Intake Airbox Hose

Perrin 02-07 WRX/STi Red Intake Air Box Hose

Perrin 02-07 WRX/STi Black Intake Air Box Hose

Mishimoto 15 Subaru WRX Airbox

Mishimoto 2015+ Subaru STI Airbox

K&N X-Stream Top Filter Red 11in / 5.125in Neck Flange / 3.5in Height

K&N X-Stream Top Assembly 5.125in Flange ID / 14inx3.75in H / 1.25in Drop B

K&N X-Stream Top Assembly 14in OD 5.125in Neck Flange 3.063in H

K&N X-Stream Top Assembly 14in OD 5.125in Neck Flange 4.62in H w/Vent

K&N 5-1/8in Flange Custom Air Cleaner Assembly

K&N 14in Red Custom Air Cleaner Assembly - 5.125in ID x 14in OD x 3.75in H x 1.25in Drop Base

K&N 14in Red Custom Air Cleaner Assembly - 5.125in ID x 14in OD x 3.87in H

K&N 5 1/8in Flange 11in OD 3 1/4in Height w/ Vent Custom Air Cleaner Assembly

K&N Custom Round Filter 5-1/8in FLG / 9in OD x 4-1/8in HW/VENT

K&N 90-92 Rover Mini 1275 L4 Round Tapered Flange 1.875in 2.25in Over Height Custom Racing Assembly

K&N Custom Racing Assembly - Round Tapered - Red 1.656in Neck Flange - 2.25in Over Height

K&N Custom Racing Assembly - Round Tapered - Red 1.375in Neck Flange - 2.25in Over Height

K&N Custom Round Racing Assembly Red 5.875in OD x 2.406in ID x 1.75in Height

K&N Orion Universal Air Cleaner Assembly