Vehicle Fitment

  • 2001–2004 Ford Explorer (4.0L V6, AWD/RWD)
  • 2001–2003 Ford Ranger (4.0L V6, 4WD/RWD)
  • 2001–2003 Mazda B4000 (4.0L V6, 4WD/RWD)

Features

  • High-density polyethylene (HDPE) rotationally-molded intake tube
  • Washable and reusable High-Flow Air Filter™ with oiled cotton media
  • Oversized conical filter design for improved airflow
  • Up to 100,000 miles between filter services under normal highway driving conditions
  • Guaranteed increase in horsepower and torque
  • Easy installation with simple hand tools
  • Street legal in all 50 U.S. states (CARB EO Number D-269-28)
  • No-hassle lifetime limited warranty

Specifications

  • Estimated horsepower gain: +6.89 HP @ 5244 RPM
  • Estimated torque gain: +6.9 lb-ft
  • Replacement filter: RU-1048
  • Alternate replacement filters: RF-1048/RU-1048XD
  • Intake pipe material: High-density cross-linked polyethylene
  • Clamp material: Stainless steel
  • Clamp style: Regular
  • Intake pipe color/finish: Black
  • Air filter color: Red
  • Product style: 57 Series FIPK
  • Weight: 8.4 lb (3.8 kg)
  • Product box dimensions: 12.25" H x 20.25" L x 12.25" W

Included Components

  • 1x High-Flow Air Filter™ (RU-1048)
  • 1x Rotationally-molded intake tube
  • 2x Couplers
  • 6x Stainless steel clamps
  • 1x Heat shield
  • Mounting hardware
  • Installation instructions

Product Description

The K&N 57-2529-1 Performance Air Intake System is engineered to enhance your vehicle's engine performance by increasing airflow and improving throttle response. Designed for select 2001–2004 Ford Explorer, 2001–2003 Ford Ranger, and 2001–2003 Mazda B4000 models equipped with the 4.0L V6 engine, this intake system delivers a guaranteed increase in horsepower and torque.

Constructed with a high-density polyethylene (HDPE) rotationally-molded intake tube, the system ensures optimal airflow to the engine. The oversized conical High-Flow Air Filter™ features oiled cotton media, allowing for up to 100,000 miles between filter services under normal highway driving conditions. Installation is straightforward and can be completed in 60 minutes or less using simple hand tools.

This intake system is street legal in all 50 U.S. states, carrying CARB EO Number D-269-28, and is backed by K&N's no-hassle lifetime limited warranty, providing peace of mind and long-term reliability.



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