K&N 33-2129 High Performance Replacement Air Filter

by K&N

Product Features

• A high-flow, washable filter that delivers the maximum amount of air possible into your engine while providing superior filtering
• Multiple layers of cotton fabric sandwiched between pleated aluminum screen capture airborne dirt particles
• Improves horsepower and torque
• Emission legal in all 50 states, will not void manufacturer's warranty
• Filters can be cleaned over and over, and are backed by a million mile limited warranty

Product Details

View Installation Instruction [14kb PDF]

• Product Dimensions: 12.1 x 18.2 x 1.8 inches
• Shipping Weight: 1.6 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B0000UUX34
• Item model number: 33-2129
• Average Customer Review: 4.7 out of 5 stars  See all reviews (29 customer reviews)
• Amazon Best Sellers Rank: #534 in Automotive (See Top 100 in Automotive)
  • #3 in Automotive > Performance Parts & Accessories > Filters > Air Filters & Accessories > Air Filters
  • #3 in Automotive > Replacement Parts > Filters > Air Filters & Accessories > Air Filters

Product Description

K&N's lifetime replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. The air filter is custom-designed to fit into your existing factory air box and the drop-in design means adding performance is simple. The unique design of the air filter features multiple layers of cotton fabric which capture airborne dirt particles. The filter is washable and reusable and can be easily cleaned and oiled. It lasts up to 50,000 miles before cleaning is needed.

Customer Reviews

Most Helpful Customer Reviews

3 of 3 people found the following review helpful:

5.0 out of 5 stars Excellent, December 28, 2007

By 

N. Shone (Roll on you Bears!) - See all my reviews
(REAL NAME)   

This review is from: K&N 33-2129 High Performance Replacement Air Filter (Misc.)

Excellent product, fast shipping. I swear by these filters for both added power and increased fuel efficiency. I purchased this one for my '03 Suburban, and have used others in an '07 Altima, a '99 BMW 540i and a supercharged '91 Maxima. All performed flawlessly.

2 of 2 people found the following review helpful:

4.0 out of 5 stars good buy and lasting investment., January 13, 2009

By 

Cot Y. M. Lee (Louisiana) - See all my reviews
(REAL NAME)   

This review is from: K&N 33-2129 High Performance Replacement Air Filter (Misc.)

I purchased this item for around $20 on a special and glad I did. I'm not out changing air filters all the time and this one seems to have given me about 1/2 mpg better efficiency in my civic. I can't comment on HP because I don't really feel an increase.

2 of 2 people found the following review helpful:

5.0 out of 5 stars I reccomend this item, September 26, 2007

By 

Gregory A. Dilisa "10 foot chopper" (Irvine, CA USA) - See all my reviews
(REAL NAME)   

This review is from: K&N 33-2129 High Performance Replacement Air Filter (Misc.)

I received this and did a simple install in my 2007 Chevy Silverado 5.3L, my onboard computer shows that I now get an extra 2 miles per gallon and I noticed a slight increse in torque.