AirAid Throttle Body Spacer

1999–2004 Jeep Grand Cherokee 4.7L V8

Part #: 310-515

Overview

The AirAid Throttle Body Spacer is a precision-engineered performance upgrade designed specifically for the 1999 to 2004 Jeep Grand Cherokee equipped with the 4.7L V8 engine. This innovative spacer enhances off-idle torque and mid-range power by optimizing the airflow entering the engine. Ideal for Jeep enthusiasts seeking improved throttle response and stronger part-throttle performance, the AirAid spacer delivers noticeable gains without the need for extensive modifications.

By improving the air/fuel mixture atomization, this throttle body spacer helps the engine breathe more efficiently, resulting in better combustion and enhanced drivability. It’s an excellent choice for daily drivers and off-road adventurers alike who want to maximize their Jeep’s performance potential.

Key Features

The AirAid Throttle Body Spacer incorporates advanced technology and quality craftsmanship to deliver reliable performance improvements. Key features include:

• Patented Helix Bore design that spins incoming air to increase velocity
• Enhances off-idle torque from approximately 800 rpm to 3,000 rpm
• Improves atomization of the air/fuel mixture for more efficient combustion
• Boosts mid-range power and throttle response for better acceleration
• Made from aircraft-quality billet 6061-T6 aluminum for durability
• Includes all necessary gaskets, hardware, and precision brackets
• Street legal in all 50 US states with no emissions modifications required
• Simple installation with no drilling or cutting needed

Construction & Design

Crafted from premium billet 6061-T6 aluminum, the AirAid Throttle Body Spacer is built to withstand the rigors of daily driving and off-road use. The lightweight yet robust construction ensures long-lasting durability without adding unnecessary weight. The unique Helix Bore design is engineered to create a spinning motion in the incoming air charge, which increases air velocity and improves fuel atomization as it enters the combustion chamber. This precise airflow manipulation results in more efficient combustion and enhanced engine performance.

Performance & Sound

The AirAid Throttle Body Spacer is specifically tuned to improve low-end torque and mid-range power, making throttle response sharper and more immediate. Drivers will notice stronger part-throttle acceleration and smoother power delivery, especially during city driving and light off-road conditions. While the spacer primarily enhances performance, it does so without altering the engine’s sound characteristics significantly, maintaining the Jeep’s natural exhaust tone.

Installation & Fitment

Installation of the AirAid Throttle Body Spacer is straightforward and can typically be completed in under an hour. The spacer is designed to fit perfectly between the throttle body and intake manifold of the 1999–2004 Jeep Grand Cherokee 4.7L V8, requiring no drilling, cutting, or permanent modifications. All necessary gaskets, hardware, and brackets are included to ensure a secure, leak-free fit. This makes it an ideal upgrade for enthusiasts who want a hassle-free installation with immediate performance benefits.

What's Included

• Billet 6061-T6 aluminum throttle body spacer
• Precision mounting brackets
• Gaskets for proper sealing
• Installation hardware
• Detailed installation instructions

Ideal For

This throttle body spacer is perfect for Jeep Grand Cherokee owners looking to improve throttle response and mid-range torque without extensive engine modifications. It suits daily drivers seeking enhanced drivability, off-road enthusiasts wanting better low-end power, and anyone interested in a reliable, street-legal performance upgrade that installs quickly and easily.

Emissions Note

This product is street legal in all 50 US states and complies with emissions regulations, requiring no additional modifications to maintain legal status.

AIRAID builds performance intake systems and air filters designed to reduce airflow restriction while maintaining strong filtration for daily-driven and performance vehicles. The brand emphasizes engineered intake tubes, air boxes, and reusable filters that support horsepower gains and reliable engine protection without complicated tuning requirements on many applications.