K&N 57S-4000 Performance Air Intake System

The K&N 57S-4000 57i Generation II Induction Kit uses a non-metallic rotationally molded tube to reduce air temperature for improved performance.
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 engine's 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. K&N builds these air box systems to last for the life of your vehicle and they are backed by K&N's Million Mile Limited Warranty. Some K&N 57S Series Performance Airboxes are compliant with the latest TUV emissions and sound regulations. Check the K&N catalog or website for vehicle applications and specific TUV status for each vehicle and air intake.

K & N 57S-4000 Review: Boring but pics!!!

FIAT GRANDE PUNTO 1.4L TJET 2006-2013

Cold Air Intake - High-flow, Roto-mold Tube - FIAT GRANDE PUNTO 1.4L TJE

K&N 57-2529-1 Performance Air Intake System

The KN 57-1133 cold air intake system replaces the factory air filter and air intake housing in many Polaris Ranger RZR models for a guaranteed increase in horsepower and torque. A free-flowing aluminum intake tube helps increase the volume of airflow to your engine. The system is paired with a washable, reusable High-Flow Air Filter featuring oiled cotton filter media, which is protected by a foam wrap and an enclosed filter housing for additional protection from heat and the elements.

K&N 57-1133 - 14-19 Polaris RZR 1000 999cc Performance Intake Kit

The K&N 57-1140 cold air intake system replaces the factory air filter and air intake housing in many Can-Am Maverick models for a guaranteed increase in horsepower and torque. A high-density polyethylene (HDPE) rotationally-molded tube helps increase the volume of airflow to your engine.

K&N 57-1140 - 15-17 Can-Am Maverick Performance Intake Kit

K&N 63 Series AirCharger High Performance Air Intakes

K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed to Increase Horsepower up to 16HP: Compatible with 1.6L, L4, 2007-2018 FORD/VOLVO/MAZDA (C-Max, Focus, Grand, Transit)57S-4000 : Automotive

Review of my K&N 57S-4000 Performance Intake Kit

The K&N 57S-4902 Performance Airbox replaces the restrictive factory air filter and air box. 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 engine's RPM range.

K&N 57S-4902 - Performance Intake Kit

FIPK; FORD F150 V8-5.0L F/I; 2018-2020

Cold Air Intake - High-flow, Roto-mold Tube - FORD F150 V8-5.0L

Cold Air Intake - High-flow, Roto-mold Tube - CHEVY C/K P/U V8

K&N Filters Coupons February 2024

33-2238 K&N Replacement Air Filter

RU-1750 K&N Universal Clamp-On Air Filter

K&N Motorcycle Oil Filter: High Performance, Premium