Description
Upgrade the power and performance of your Toyota 4Runner or Toyota FJ Cruiser with the K&N 57-Series Cold Air Intake System (KNN57-9034). This intake system, engineered with a high-density roto-molded HDPE intake tube and High-Flow Air Filter™, is designed to replace your factory air filter and intake tube, offering a noticeable improvement in horsepower, torque, and throttle response.
K&N’s 57-Series intake system keeps the OEM airbox setup for easy, factory-like fitment and installs in under an hour using standard hand tools. Legal in all U.S. states, the system includes a CARB EO Number (D-269-90) and is certified for emissions compliance. Backed by K&N’s No-Hassle Lifetime Limited Warranty, this intake is designed for longevity, with a washable, reusable oiled cotton filter requiring service only every 100,000 miles under typical driving conditions.
Product Highlights:
- Guaranteed Performance Gains: Estimated 5.84 HP increase at 5400 RPM and 5.7 lb-ft of torque.
- Roto-Molded Intake Tube: Constructed from HDPE for durability and optimal airflow.
- Direct Replacement Air Filter: High-flow, reusable oiled cotton filter drops directly into the OEM airbox.
- Low Maintenance: Filter requires cleaning only every 100,000 miles under normal highway use.
- Street Legal: CARB-compliant and 50-state legal.
- Quick Installation: Can be completed in 60 minutes or less with basic hand tools.
Fitment Information
This K&N Cold Air Intake System (KNN57-9034) is compatible with the following Toyota models:
Toyota 4Runner (V6 4.0L Gas)
- 2020 Toyota 4Runner
- 2019 Toyota 4Runner
- 2018 Toyota 4Runner
- 2017 Toyota 4Runner
- 2016 Toyota 4Runner
- 2015 Toyota 4Runner
- 2014 Toyota 4Runner
- 2013 Toyota 4Runner
- 2012 Toyota 4Runner
- 2011 Toyota 4Runner
- 2010 Toyota 4Runner
Toyota FJ Cruiser (V6 4.0L Gas)
- 2014 Toyota FJ Cruiser
- 2013 Toyota FJ Cruiser
- 2012 Toyota FJ Cruiser
- 2011 Toyota FJ Cruiser
- 2010 Toyota FJ Cruiser
Each model is CARB-compliant (D-269-90) and legal for street use in all 50 U.S. states.
Technical Specifications
- Estimated Horsepower Gain: 5.84 HP @ 5400 RPM
- Estimated Torque Gain: 5.7 lb-ft
- Replacement Filter: 33-2438
- Air Filter Color: Red
- Air Filter Material: Oiled Cotton Gauze
- Clamps Included: 4 stainless steel worm gear clamps
- Intake Tube Material: High-Density Cross-Linked Polyethylene (HDPE)
- Intake Tube Finish: Black
- System Type: 57 Series FIPK (Factory Airbox Retained)
- Weight: 6 lb (2.7 kg)
- Warranty: No-Hassle Lifetime Limited Warranty
