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 Performance Air Intake System

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

K&N 57-1554 Performance Air Intake System

K&N Performance Air Intake Multiple Fitments (57S-4000) –

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

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

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

K&N's 57S Performance Airbox is a TUV compliant intake system. The oversized conical filter and the custom engineered Velocity Stack (Velum) have been

K&N 57S Performance Air Filter Induction Kit / Airbox - 57S-4000

The K&N 57-3070 FIPK performance air intake system replaces the restrictive OEM air filter and air intake. K&N intakes are guaranteed to product more horsepower for your engine because they are designed to straighten and smooth the intake air flow. Utilizing a massive high-flow K&N air filter and a free-flowing, high density polyethylene tube, your engine inhales a larger amount of air than the factory air filter assembly.

K&N 57-3070 Performance Intake Kit

57-2543 K&N PERFORMANCE AIR INTAKE SYSTEM in Yuma USA. Racing UTV Parts & Accessories

FIAT GRANDE PUNTO 1.4L TJET 2006-2013

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

The K and N 57-3513 FIPK air intake system replaces the restrictive factory air filter and air intake housing in some Honda Civic models. K and N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your Civic's 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 Filters Filtercharger Injection Performance Kit