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K&N Air Filters
K&N Filter Air FilterFrom $112.99
- Designed to Increase Horsepower
- Easy to Install Drop-in Design
- Lifetime Reusable Air Filter
- Million Mile Limited Warranty
- Lasts up to 50,000 Miles Between Servicing
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From $112.99
4.4
4.4
(2193)
K&N Filter X-Stream Air Filter
K&N Filter X-Stream Air FilterFrom $100.99
- K&N gives you the power you've been looking for with the new XStream Air Flow Top. Cleanable and reusable, the XStream Air Flow Top filter delivers outstanding engine protection and comes in a wide range of applications. Sizes include 9, 11, 14 and 16-inch diameters. The 14-inch tops are available in anodized black, red, blue or chrome trim ring.
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K&N Filter Custom Inverted Air Filter
K&N Filter Custom Inverted Air FilterFrom $80.99
- K&N automotive replacement air filters are designed to add horsepower and acceleration to your car or truck by providing up to 50% more air flow to your engine. More air flow can result in crisper throttle response and more torque throughout the engine RPM range. K&N air filters are made up of multiple layers of oiled cotton filter media that not only provide superior air flow but also excellent filtration to ensure long engine life.
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K&N Filter Custom Titanium Air Filter
K&N Filter Custom Titanium Air FilterFrom $105.99
- K&N automotive replacement air filters are designed to add horsepower and acceleration to your car or truck by providing up to 50% more air flow to your engine. More air flow can result in crisper throttle response and more torque throughout the engine RPM range. K&N air filters are made up of multiple layers of oiled cotton filter media that not only provide superior air flow but also excellent filtration to ensure long engine life.
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K&N Filter Replacement Air Filter - E-2315
- 7-3/16 inchB, 5-5/16 inchT, 3-7/16 inchH
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$42.99
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- 7-3/16 inchB, 5-5/16 inchT, 3-7/16 inchH
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K&N Filter Replacement Air Filter - E-2321
- 5-3/8 inch OD, 3-1/2 inch ID, 2-1/4 inch H
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$53.99
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- 5-3/8 inch OD, 3-1/2 inch ID, 2-1/4 inch H
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K&N Filter Replacement Air Filter - E-2345
- ISUZU DIESEL #8-94334906-0
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- ISUZU DIESEL #8-94334906-0
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K&N Filter Replacement Air Filter - E-2351
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K&N Filter Replacement Air Filter - E-2361
- ROVER 820 2.0-SI 16V, 1991
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- ROVER 820 2.0-SI 16V, 1991
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K&N Filter Replacement Air Filter - E-2430
- 6 inch OD, 4-1/4 inch ID, 3-1/4 inch H
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$62.99
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$62.99
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- 6 inch OD, 4-1/4 inch ID, 3-1/4 inch H
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K&N Filter Replacement Air Filter - E-2447
- ISUZU TROOPER 3.1L I4 DIESEL (NON-US)
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- ISUZU TROOPER 3.1L I4 DIESEL (NON-US)
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K&N Filter Replacement Air Filter - E-2520
- 7 inch OD, 5-3/16 inch ID, 3-3/16 inch H
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- 7 inch OD, 5-3/16 inch ID, 3-3/16 inch H
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K&N Filter Replacement Air Filter - E-2566
- FORD(EUROPE) CAPRI 1970-71
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- FORD(EUROPE) CAPRI 1970-71
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K&N Filter Replacement Air Filter - E-2658
- AUDI A2 1.4L I4 GAS and 1.4L I3 TURBO-DIESEL
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K&N Filter Replacement Air Filter - E-2720
- Universal
- 7-1/2 inch X 9 inch X 2-1/2
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K&N Filter Replacement Air Filter - E-2770
- 10-1/2 inchOD,8-1/2 inchID,1-3/4 inchH
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- 10-1/2 inchOD,8-1/2 inchID,1-3/4 inchH
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K&N Filter Replacement Air Filter - E-2855
- AUSTRALIAN FORD XE, XF, EA, EB
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K&N Filter Replacement Air Filter - E-2862
- FIAT PUNTO II 1.9L J-TURBO-DIESEL 105-HP and 1.8L 16V 131-HP
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- FIAT PUNTO II 1.9L J-TURBO-DIESEL 105-HP and 1.8L 16V 131-HP
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K&N Filter Replacement Air Filter - E-2864
- VW POLO 1.4L TURBO-DIESEL (75-HP)
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- VW POLO 1.4L TURBO-DIESEL (75-HP)
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K&N Filter Replacement Air Filter - E-2877
- MITSUBISHI DELICA NON-USA 1996
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- MITSUBISHI DELICA NON-USA 1996
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K&N Filter Replacement Air Filter - E-2960
- FERRARI BOXER,DAYTONA
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- FERRARI BOXER,DAYTONA
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K&N Filter Replacement Air Filter - E-1095
- DODGE VAN L6 225 CID, 1983-84
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- DODGE VAN L6 225 CID, 1983-84
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Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!
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K&N Filter Replacement Air Filter - E-2010
- AIR PUMP FILTER VW BUS
- California Residents: WARNING
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
Qualifies for Free Shipping on Orders Over $99
$48.99
On Backorder
Contact Us for Availability or Alternatives
LOW PRICE GUARANTEE
EASY RETURNS
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
$48.99
On Backorder
Contact Us for Availability or Alternatives
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
- AIR PUMP FILTER VW BUS
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
4WP PROTECTION PLAN
Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!
Sign In Or Create an Account
Reset Password
An email is sent to .
Enter email address to change your password
After you submit your email address, you'll receive an email a link that will let you change your password.
Choose Your Secure Checkout Method
Create An Account
Add to Wishlist
K&N Filter Replacement Air Filter - E-4834
- 11 inch OD,8-1/2 inch ID,4-5/16 inch H
- California Residents: WARNING
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
Qualifies for Free Shipping on Orders Over $99
$93.99
On Backorder
Contact Us for Availability or Alternatives
LOW PRICE GUARANTEE
EASY RETURNS
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
$93.99
On Backorder
Contact Us for Availability or Alternatives
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
- 11 inch OD,8-1/2 inch ID,4-5/16 inch H
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
4WP PROTECTION PLAN
Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!
Sign In Or Create an Account
Reset Password
An email is sent to .
Enter email address to change your password
After you submit your email address, you'll receive an email a link that will let you change your password.
Choose Your Secure Checkout Method
Create An Account
Add to Wishlist
K&N Filter Replacement Air Filter - E-4910
- 6-5/8 inch B, 5-1/8 inch T,10 inch H
- California Residents: WARNING
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
Qualifies for Free Shipping on Orders Over $99
$91.99
On Backorder
Contact Us for Availability or Alternatives
LOW PRICE GUARANTEE
EASY RETURNS
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
$91.99
On Backorder
Contact Us for Availability or Alternatives
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
- 6-5/8 inch B, 5-1/8 inch T,10 inch H
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
4WP PROTECTION PLAN
Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!
Sign In Or Create an Account
Reset Password
An email is sent to .
Enter email address to change your password
After you submit your email address, you'll receive an email a link that will let you change your password.
Choose Your Secure Checkout Method
Create An Account
Add to Wishlist
K&N Filter Replacement Air Filter - E-9001
- ROVER MINI 1959-74 SINGLE CARB, 1963-71 TWIN CARB
- California Residents: WARNING
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
Qualifies for Free Shipping on Orders Over $99
$46.99
On Backorder
Contact Us for Availability or Alternatives
LOW PRICE GUARANTEE
EASY RETURNS
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
$46.99
On Backorder
Contact Us for Availability or Alternatives
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
- ROVER MINI 1959-74 SINGLE CARB, 1963-71 TWIN CARB
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
4WP PROTECTION PLAN
Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!
Sign In Or Create an Account
Reset Password
An email is sent to .
Enter email address to change your password
After you submit your email address, you'll receive an email a link that will let you change your password.
Choose Your Secure Checkout Method
Create An Account
Add to Wishlist
K&N Filter Replacement Air Filter - E-9002
- California Residents: WARNING
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
Qualifies for Free Shipping on Orders Over $99
$77.99
On Backorder
Contact Us for Availability or Alternatives
LOW PRICE GUARANTEE
EASY RETURNS
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
$77.99
On Backorder
Contact Us for Availability or Alternatives
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
- California Residents: WARNING
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
4WP PROTECTION PLAN
Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!
Sign In Or Create an Account
Reset Password
An email is sent to .
Enter email address to change your password
After you submit your email address, you'll receive an email a link that will let you change your password.
Choose Your Secure Checkout Method
Create An Account
Add to Wishlist
K&N Filter Replacement Air Filter - E-9053
- RENAULT 21 TURBO 1988
- California Residents: WARNING
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
Qualifies for Free Shipping on Orders Over $99
$67.99
On Backorder
Contact Us for Availability or Alternatives
LOW PRICE GUARANTEE
EASY RETURNS
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
$67.99
On Backorder
Contact Us for Availability or Alternatives
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
- RENAULT 21 TURBO 1988
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
