Free Shipping on most orders $500+ within contiguous USA

Air Boxes

Shop by category

Sort by:

139 Products

K&N Engineering KNNKN-564

K&N Can/AM Spyder RT 998/ Buell 1125R -2.2219in OD x 0.969in ID x 3.813in H Oil Filter

In stock (326)

(0)

Regular price $25.70
K&N Engineering KNNKN-563

K&N Aprilia / Derbi / Husqvarna / Piaggio 1.781in OD x 0.625in ID x 1.844in H Oil Filter

In stock (131)

(0)

Regular price $22.88
K&N Engineering KNN56-1620

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

Backorder - Call for ETA

(0)

Regular price $146.99
K&N Engineering KNN66-3040

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

In stock (7)

(0)

Regular price $176.93
K&N Engineering KNN66-3060

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

In stock (6)

(0)

Regular price $176.93
K&N Engineering KNN66-3110

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

In stock (32)

(0)

Regular price $176.93
K&N Engineering KNN56-1630

K&N Custom Round Racing Assembly Red 5.875in OD x1.313in ID x 1.813in Height

In stock (33)

(0)

Regular price $119.99
K&N Engineering KNN60-1120

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

In stock (33)

(0)

Regular price $146.99
K&N Engineering KNN56-9320

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

In stock (46)

(0)

Regular price $115.99
-6%

Mishimoto MISMMAB-WRX-15

Mishimoto 15 Subaru WRX Airbox

In stock (26)

(0)

Regular price $169.21

Regular price ~~$180.00~~ Sale price $169.21
-25%

Perrin Performance PERPSP-INT-401RD

PERRIN 02-07 Subaru WRX / 04-21 STI / 04-08 Forester XT Turbo Inlet Hose - Red

In stock (33)

(0)

Regular price $249.75

Regular price ~~$333.00~~ Sale price $249.75
K&N Engineering KNN66-3120

K&N X-Stream Top Filter Red 11in / 5.125in Neck Flange / 4.37in Height

In stock (13)

(0)

Regular price $217.94
K&N Engineering KNN54-5000

K&N Orion Universal Air Cleaner Assembly

In stock (16)

(0)

Regular price $212.99
-25%

Perrin Performance PERPSP-INT-401BK

PERRIN 02-07 Subaru WRX / 04-21 STI / 04-08 Forester XT Turbo Inlet Hose - Black

In stock (127)

(0)

Regular price $249.75

Regular price ~~$333.00~~ Sale price $249.75
K&N Engineering KNN56-1400

K&N Custom Round Racing Assembly Red 4.5in ID / 5.875in OD / 1.75in Height

In stock (61)

(0)

Regular price $125.99
K&N Engineering KNN66-3300R

K&N Dominator Drag Race Assy 9inOD X 3inH

In stock (38)

(0)

Regular price $241.92
K&N Engineering KNN66-3080

K&N X-Stream Top Filter Red 14in OD / 7.313in Neck Flange / 5.5in Height

In stock (10)

(0)

Regular price $241.92
K&N Engineering KNN60-1180

K&N Custom Round Filter 5-1/8in FLG / 11in Dia / 4-3/4in H w/VENT

In stock (24)

(0)

Regular price $146.99
K&N Engineering KNN66-3010

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

In stock (25)

(0)

Regular price $176.93
K&N Engineering KNN60-1290

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

In stock (13)

(0)

Regular price $157.99
K&N Engineering KNN60-1280

K&N 14in Red Custom Air Cleaner Assembly - 5.125in ID x 14in OD x 2.75in H x 1.25in Drop Base

In stock (21)

(0)

Regular price $125.99
K&N Engineering KNN60-1190

K&N Custom Round Filter 5-1/8in FLG / 11in Dia / 6-1/4in H

In stock (13)

(0)

Regular price $157.99
K&N Engineering KNN60-1170

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

In stock (41)

(0)

Regular price $188.99
K&N Engineering KNN60-1110

K&N Custom Oval Race Filter 5-1/8in FLG / 9in OD x 3-3/8in HW/VENT

In stock (14)

(0)

Regular price $157.99
K&N Engineering KNN56-1170

K&N Custom Oval Red Race Filter 7in L x 4-1/2in W 3-1/4in H

In stock (18)

(0)

Regular price $125.99
K&N Engineering KNN66-3000

K&N X-Stream Round Custom Top Assembly Filter - Red 12in ID 5.125in Inlet Dia 2.313in Height

In stock (17)

(0)

Regular price $217.94
K&N Engineering KNN60-1430

K&N Round Air Filter Assembly 12in ID / 3.063in Height / 5.125in Neck Flange / 7/8in Drop Base

In stock (7)

(0)

Regular price $157.99
K&N Engineering KNN56-1210

K&N Custom Racing Assembly DDO 9x5-1/2in Oval 3-1/4in Height Vent

In stock (23)

(0)

Regular price $146.99
BMC BMCFM01067

BMC Scout Full Intake Kit

In stock (9)

(0)

Regular price $152.90
K&N Engineering KNN66-3020

K&N X-Stream Top Filter Black 14 inch OD 5.125 inch Neck Flange 5.875 inch H

In stock (10)

(0)

Regular price $217.94
K&N Engineering KNN60-1320

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

In stock (18)

(0)

Regular price $146.99
-25%

Perrin Performance PERPSP-INT-401BL

PERRIN 02-07 Subaru WRX / 04-21 STI / 04-08 Forester XT Turbo Inlet Hose - Blue

In stock (12)

(0)

Regular price $249.75

Regular price ~~$333.00~~ Sale price $249.75
-25%

Perrin Performance PERPSP-INT-350BK

PERRIN 02-07 Subaru WRX/STi AFTA-MAF Intake Tube Air-Box to Inlet Hose - Black

In stock (9)

(0)

Regular price $95.25

Regular price ~~$127.00~~ Sale price $95.25
K&N Engineering KNN66-3160

K&N X-Stream Top Assembly 9in OD / 5-1/8in Flange / 2-3/4 Velocity Stack

In stock (10)

(0)

Regular price $201.69
K&N Engineering KNN66-3140

K&N X-Stream Top Assembly 7.313in Flange ID / 11in x 4.5in Custom Assembly

In stock (8)

(0)

Regular price $241.92
K&N Engineering KNN66-3030

K&N X-Stream Top Assembly 5.125in Neck Flange / 14in D / 6.62in H w/Vent

In stock (7)

(0)

Regular price $217.94
K&N Engineering KNN56-9330

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

Backorder - Call for ETA

(0)

Regular price $125.99
K&N Engineering KNN56-9121

K&N Triumph/Rover Custom Air Filter for Single or Two Barrel Carburetors

In stock (4)

(0)

Regular price $125.99
K&N Engineering KNN56-1770-2

K&N Custom Oval Racing Assembly Red 11.96in Inside Length / 5.22in Inside Width / 3.25in Filter H

In stock (9)

(0)

Regular price $262.99
-25%

Perrin Performance PERPSP-INT-350RD

PERRIN 02-07 Subaru WRX/STi AFTA-MAF Intake Tube Air-Box to Inlet Hose - Red

In stock (4)

(0)

Regular price $95.25

Regular price ~~$127.00~~ Sale price $95.25
K&N Engineering KNN66-3070

K&N X-Stream Top Assembly 5-1/8in x 14in x 4.75in H x 1.25in Drop Base

In stock (10)

(0)

Regular price $217.94
K&N Engineering KNN66-3150

K&N X-Stream Top Filter - Red - Size 9in - 5.125in Neck Flange / 2.75in Height

In stock (7)

(0)

Regular price $176.93
K&N Engineering KNN66-3330R

K&N X-Stream Top Assembly 9n OD 7.313in Neck Flange 3in H

In stock (20)

(0)

Regular price $258.17
-25%

Perrin Performance PERPSP-INT-355RD

PERRIN 08-14 Subaru WRX / 08-21 STI / 05-09 LGT/OBXT AFTA-MAF Intake Tube Air-Box to Inlet Hose - Rd

In stock (5)

(0)

Regular price $102.00

Regular price ~~$136.00~~ Sale price $102.00
K&N Engineering KNN60-1440

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

In stock (20)

(0)

Regular price $157.99
Spectre SPE9833

Spectre Inline Air Box 4in. w/Filter

In stock (12)

(0)

Regular price $104.99
K&N Engineering KNN60-1263

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

In stock (19)

(0)

Regular price $157.99
K&N Engineering KNNHA-4506-T

K&N 06-09 & 12-13 Honda TRX450ER / 06-09 TRX450R Powerlid Air Box Cover

In stock (33)

(0)

Regular price $176.93