Billed as the "manufacturer of the world's best air filters," K&N produces the most widely used filters for the professional motorsports industry, with over 80% of all off-road racing vehicles using their products. Independent labs verify the increases in power and performance claimed by K&N products.

Increase the horsepower and throttle response of your vehicle's engine with a K&N Fuel Injection Performance Kit intake system! This FIPK intake is engineered to replace the factory air box of your 2001-02 Lexus IS300.

The washable, reusable filter element used in this FIPK allows for the virtually unrestricted flow of more (and cooler) air to your engine. This results in improved performance — performance you can feel every time you step on the accelerator. The fluid, dynamic design also smoothes out and straightens the airflow — air moving in a straight line is more effective than the turbulent air typically sent by factory systems.

Each FIPK comes with comprehensive installation instructions — you might be surprised how easy they are to install! To ensure that this FIPK will work with your car, click on "What Fits My Car?" and enter its year, make, and model in our Vehicle Selector (if you haven't already). You can also call a Sales Advisor at 1-888-955-6000.

Important Note: K&N intakes work with your vehicle's factory computer emissions controls, and they're street legal in most states. Call K&N at 1-800-858-3333 to make sure this model has been approved for use in your state. These intakes are so effective, they're backed by K&N's impressive 10-year, million-mile limited warranty!

Hands-on research

What's in the box?

Download owner's manual

  • The Main box contains one smaller box (Filter box) and the following items:
  • Two #44 hose clamps
  • 1 Hump hose
  • 1 Intake tube
  • Two 8mm-1.25 x 16mm hexhead bolts
  • 2 Washers (5/16" inner diameter and 5/8" outer diameter)
  • One 8mm nylock nut
  • 1 Small bracket
  • One 3/8" to 3/8" hose vent
  • 1 Silicone hose
  • One 1/4 NPT 5/16" barbed vent
  • Two M4-0.7 x 16mm button head screws
  • 1 Gasket
  • 1 Twist "L" bracket
  • Three 6mm nylock hexhead nuts
  • 6 Flat washers (1/4" inner diameter and 5/8" outer diameter)
  • 1 Nylon conical washer
  • 1 Saddle bracket
  • One M6-1.00 x 20mm bolt
  • One 26" edge trim
  • 1 Filter adapter
  • 1 Heat shield
  • Two 8mm wave washers
  • Two 6mm wave washers
  • 1 Angled I-bend bracket
  • One #60 hose clamp
  • Three M6-1.00 x 16mm hexhead bolts
  • One 8mm-1.25 x 25mm button head bolt
  • One #48 hose clamp
  • 2 Spacers
  • Installation Instructions
  • 1 C.A.R.B. exemption sticker
  • Air Filter Service Instructions
  • Warranty Claim Card
  • Two 3-1/2" x 1-3/8" "K&N Performance Filters" stickers
  • The Filter box contains:
  • 1 Filtercharger element (part #RP-4980)
  • One #64 hose clamp
  • Purchaser Profile & Product Registration sheet (has detachable "Important Service Information" flap)
  • 1 "Do Not Discard" sticker
  • One 3-1/2" x 1-3/8" "K&N Performance Filters" sticker

Product Research


Overview: The K&N 57 Series Air Intakes Kit (FIPK) is made for many different vehicles and offers a dramatic improvement over your vehicles OEM air filter. The K&N 57 Series kit uses a large conical shaped high-flow air filter that provides greater airflow with lower restriction. The oversized air filter also captures and holds more dirt increasing the service life before a cleaning is required (up to 100,000 miles). When possible, the K&N filter is isolated from high engine temperature by a heat shield designed to lower the temperature of the air entering the engine, which increases horsepower.  The K&N 57's high-flow air filter is attached to a rotationally molded tube made from interlaced high density polyethylene (HDPE). The intake tube is precisely shaped to reduce turbulence and accelerate airflow into the engine. The intake tube is then connected to the your vehicle's engine with adapters made from high-strength materials, such as silicon and reinforced nylon to ensure long-life.

Note: CARB Exempt and street legal in all 50 US States.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

K&N Fuel Injection Performance Kit Reviews

Average Customer Review:

1 reviews
Review this product
Great Gear Giveaway

Submit a review and then enter to win a $350 rewards card


Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
  Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

K&N Fuel Injection Performance Kit

Written By rusty, Puyallup,Wa. on Tuesday, July 12, 2005

K&N kit took me about 45min to install and I would consider myself average or below in mechanical skills. Once installed It added considerable touque I would say easily the 9.56 hp it claims in the box and adds a nice throaty sound (like a v-8) to the motor very much worth the money/ also added an exhaust for double the bang.