Kit Easy Installation

K&N 57S-4000 Performance Airbox Kit with Filter for Focus/C-Max/Transit Connect/5

K&N 57S-4000 Performance Airbox Kit with Filter for Focus/C-Max/Transit Connect/5
K&N 57S-4000 Performance Airbox Kit with Filter for Focus/C-Max/Transit Connect/5
K&N 57S-4000 Performance Airbox Kit with Filter for Focus/C-Max/Transit Connect/5
K&N 57S-4000 Performance Airbox Kit with Filter for Focus/C-Max/Transit Connect/5

K&N 57S-4000 Performance Airbox Kit with Filter for Focus/C-Max/Transit Connect/5    K&N 57S-4000 Performance Airbox Kit with Filter for Focus/C-Max/Transit Connect/5
K&N 57S-4000 Performance Airbox Kit w/ Filter for Focus/C-Max/Transit Connect/5. PART NUMBER: 57S-4000 BRAND: K & N. The K&N 57S-4000 Performance Airbox replaces the restrictive factory air filter and air box lid. K&N performance air boxes are designed to dramatically reduce air flow restriction as well as smooth and straighten air flow. This allows your engine to inhale a larger amount of air than the factory air filter assembly. More air means more usable power and acceleration throughout the engines RPM range. The 57S-4000 Performance Airbox comes with an oversized conical K&N high-flow air filter and an injection molded air box lid with the K&N logo embossed on top. The air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions.

This performance air box is relatively easy to install into the air box base with commonly available tools. Some K&N 57S Series Performance Airboxes are compliant with the latest TUV emissions and sound regulations. Designed to improve torque and acceleration. Lasts up to 100,000 miles before service is required (depending on driving conditions). Easy to install, usually in 90 minutes or less.

Replaces entire factory air box and air filter system. Washable and reusable lifetime air filter. NOT LEGAL FOR SALE IN CALIFORNIA and STATES THAT ADOPTED CALIFORNIA CARB EMISSION LAWS. Tracking information will be posted to your sale as soon as it is available.

These charges are borne by you; we have no control over these charges and cannot predict what they may be. Additionally, when ordering from Trends Auto, you are considered the importer of record and must comply with all laws and regulations. Furthermore, your privacy is important to us, and we know that you care about how information about your order is used and shared. The item "K&N 57S-4000 Performance Airbox Kit with Filter for Focus/C-Max/Transit Connect/5" is in sale since Monday, September 28, 2015.

This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Air Intake & Fuel Delivery\Air Intake Systems". The seller is "trendsauto" and is located in 54911.

This item can be shipped to United States.

  • UPC: 024844282903
  • Manufacturer Part Number: 57S-4000
  • MPN: 57S-4000
  • Brand: K & N
  • Warranty: 10 Year
  • Fitment Type: Direct Replacement
  • Years: 07 08 09 10 11 12 13 14 15 16 17 18
  • Extended Years: 2007 2008 2010 2011 2012 2014 2015 2016 2017 2018
  • Engine Size: 1.0L 1.5L 1.6L 1.8L 2.0L 2.3L
  • Housing Color: Black
  • Part Type: Airbox System
  • Vehicle Type: Ford Focus C-Max Volvo V40 Cross Country
  • Restricted States: Not Legal for California
  • Mounting Hardware Included: Yes
  • Color: Red
  • Material: Cotton Gauze
  • Placement on Vehicle: Front
  • Series: 57i Series
  • Feature 1: Increase horsepower
  • Feature 2: Improve torque and acceleration
  • Feature 3: Replaces entire airbox and air filter system
  • Feature 4: Washable & reusable
  • Feature 5: Easy installation
  • Air Cleaner Shape: Round


K&N 57S-4000 Performance Airbox Kit with Filter for Focus/C-Max/Transit Connect/5    K&N 57S-4000 Performance Airbox Kit with Filter for Focus/C-Max/Transit Connect/5