Cold Air Intake for Jeep Grand Cherokee (1999-2004) 4.7L Engine

Optimizing the PowerTech V8: High-Flow Intake for 1999-2004 Jeep Grand Cherokee 4.7L HO

Who It’s For: Designed specifically for Jeep Grand Cherokee (WJ) owners running the 4.7L High Output (HO) PowerTech V8 engine.

The Problem: The stock intake on the PowerTech V8 is a significant bottleneck. While the HO engine was engineered with better cams and a higher compression ratio than the standard 4.7L, the factory air box remains a plastic, baffled mess designed for silence rather than volume. This restriction leads to heat soak and prevents the engine from pulling the CFM it needs during heavy acceleration or towing.

The Solution: This performance intake system replaces the restrictive factory plumbing with mandrel-bent T304 aluminum. By streamlining the air path and utilizing a high-velocity filter, we reduce the intake resistance that plagues the PowerTech V8. This allows your HO engine to breathe naturally, improving throttle response and providing a resonant, throaty engine note that matches its V8 pedigree.

Why This is the Ultimate Upgrade

• Enhanced Airflow Velocity: Increases horsepower and torque by up to 10% by providing a more direct route to the throttle body.
• T304 Aluminum Construction: Lightweight aluminum piping dissipates heat faster than the stock plastic and will not crack or degrade over time.
• Simple Bolt-On Fitment: Engineered to utilize existing mounting points, allowing for an installation that takes less than 60 minutes with basic hand tools.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• 1999 Jeep Grand Cherokee 4.7L V8 HO
• 2000 Jeep Grand Cherokee 4.7L V8 HO
• 2001 Jeep Grand Cherokee 4.7L V8 HO
• 2002 Jeep Grand Cherokee 4.7L V8 HO
• 2003 Jeep Grand Cherokee 4.7L V8 HO
• 2004 Jeep Grand Cherokee 4.7L V8 HO

Interchange Part Numbers:

Performance Air Intake For Jeep Grand Cherokee (1999-2004) 4.7L V8 HO Engine Black

The Performance Promise

Expert Tip: After installation, we recommend disconnecting your battery for 10 minutes. This allows the PCM (Engine Computer) to reset its long-term fuel trims and “learn” the increased air volume provided by the new intake. Buy with confidence. Backed by real automotive experts and fast shipping.