K&N 77-2514KP High-Flow Intake Kit for 97-04 Ford F-150/F-250/Expedition 4.6

Vehicle Fitment

• 1997-2004 Ford F-150 (4.6L/5.4L V8, RWD/4WD)
• 1997-1999 Ford F-250 (4.6L/5.4L V8, RWD/4WD)
• 1997-2004 Ford Expedition (4.6L/5.4L V8, RWD/4WD)
• 1998-1999 Lincoln Navigator (5.4L V8, 4WD)

Features

• Mandrel-bent polished aluminum intake tube for maximum airflow
• Oversized high-flow oiled cotton air filter, washable and reusable
• Replaces factory intake tube and air filter assembly in a single kit
• Estimated horsepower gain ~9.7 HP and torque gain ~12 lb-ft
• Includes stainless steel clamps, silicone couplers, and mounting hardware
• No engine tuning required for stock configuration
• Lifetime limited warranty from K&N
• CARB EO D-269-29 (limitation applies for California vehicles)

Specifications

• Intake tube material: Polished aluminum
• Filter material: Oiled cotton gauze (red)
• Clamps included: 9 stainless steel clamps
• Couplers included: 3 silicone couplers
• Estimated weight: 12.1 lb (5.5 kg)
• Replacement filter part: RU-5046 / RC-5046
• CARB Executive Order: D-269-29 (limitation applies)

Included Components

• 1x Polished aluminum intake tube
• 1x Oversized high-flow oiled cotton air filter
• 3x Silicone couplers
• 9x Stainless steel clamps
• 1x Heat-shield/mounting bracket assembly
• 1x Complete hardware pack (mounts, screws, spacers)

Product Description

The K&N 77-2514KP High-Flow Intake Kit is designed for Ford trucks and SUVs from 1997 to 2004 equipped with 4.6L or 5.4L V8 engines. It replaces the restrictive factory air path with a polished mandrel-bent tube and oversized cotton gauze filter, increasing airflow for improved throttle response, horsepower, and torque. The system delivers an estimated 9.7 HP and 12 lb-ft of torque gain.

Installation is straightforward, typically requiring 60-90 minutes with standard tools, and no engine tuning is required. The reusable filter reduces maintenance costs over time, and the polished aluminum tube enhances under-hood style while maintaining factory-like drivability.

This intake kit is ideal for owners of Ford F-150, F-250, Ford Expedition, or Lincoln Navigator with the compatible V8 engines who want improved engine performance, sound, and style. Fitment confirmed through 2004; 2025 coverage unconfirmed.