aFe Silver Bullet Throttle Body Spacer

2007–2011 Jeep Wrangler JK 3.8L

Part #: 46-35002

Overview

The aFe Silver Bullet Throttle Body Spacer is a precision-engineered performance upgrade designed specifically for the 2007 to 2011 Jeep Wrangler JK equipped with the 3.8L engine. This throttle body spacer enhances your vehicle’s air intake system by creating controlled turbulence just before the air enters the engine. The result is improved airflow dynamics that translate into increased horsepower, enhanced torque, better throttle response, and improved fuel efficiency. Ideal for Jeep enthusiasts looking to extract more performance without extensive modifications, the Silver Bullet spacer offers a straightforward bolt-on solution to optimize your Wrangler’s engine breathing.

Whether you’re tackling off-road trails or cruising on the highway, this throttle body spacer helps your engine perform more efficiently, delivering a noticeable improvement in drivability and responsiveness.

Key Features

The aFe Silver Bullet Throttle Body Spacer incorporates advanced design elements and quality materials to maximize performance gains while maintaining reliability.

• Creates turbulence in the airflow to improve combustion efficiency
• Unique serrated and helix entry design eliminates the typical whistle noise found in other throttle spacers
• Increases horsepower and torque by optimizing air intake dynamics
• Improves throttle response for a more immediate and controlled acceleration feel
• Enhances fuel efficiency by promoting better air-fuel mixture
• Constructed from durable T-6061 billet aluminum for long-lasting performance
• Precision CNC-machined for perfect fit and finish
• Direct bolt-on installation with no modifications required
• Designed specifically for Jeep Wrangler JK 3.8L engines from 2007 to 2011

Construction & Design

The Silver Bullet throttle body spacer is crafted from high-quality T-6061 billet aluminum, a material known for its strength, lightweight properties, and resistance to corrosion. This ensures the spacer maintains its structural integrity under the demanding conditions of engine bay heat and vibration. The spacer’s design features a unique serrated and helix pattern at the air entry point, which is engineered to create controlled turbulence in the incoming air stream. This turbulence improves the mixing of air and fuel, leading to more efficient combustion.

Unlike other throttle body spacers that rely solely on helix designs and often produce an unwanted whistle, the Silver Bullet’s serrated/helix combination eliminates this noise, providing a smooth and quiet operation while delivering performance benefits.

Performance & Sound

By optimizing the airflow into the engine, the Silver Bullet throttle body spacer enhances overall engine performance. Drivers will experience increased horsepower and torque, which contribute to improved acceleration and throttle response. Additionally, the improved air-fuel mixture can lead to better fuel economy under normal driving conditions. The spacer’s design also prevents the annoying whistle noise common with other throttle spacers, ensuring a refined driving experience without unwanted sound distractions.

Installation & Fitment

Installation of the aFe Silver Bullet Throttle Body Spacer is straightforward and designed to be a direct bolt-on upgrade for the Jeep Wrangler JK 3.8L models from 2007 to 2011. No special tools or modifications are required, making it an accessible upgrade for both professional mechanics and DIY enthusiasts. The spacer fits precisely between the throttle body and intake manifold, maintaining proper sealing and airflow without the need for additional gaskets or adapters.

What's Included

• One aFe Silver Bullet Throttle Body Spacer (T-6061 billet aluminum)
• Installation hardware kit
• Detailed installation instructions

Ideal For

This throttle body spacer is perfect for Jeep Wrangler JK owners who want to enhance their vehicle’s performance without extensive engine modifications. It suits daily drivers seeking improved throttle response and fuel efficiency, as well as off-road enthusiasts who demand reliable power delivery and torque. The Silver Bullet spacer is also an excellent choice for those looking to complement other performance upgrades such as cold air intakes or exhaust systems.

aFe POWER (Advanced FLOW Engineering) offers dyno-proven intake, filtration, and exhaust upgrades aimed at measurable performance gains. The brand’s lineup is geared toward enthusiasts looking for better airflow, improved sound, and durable materials—from cold air intakes to stainless exhaust systems for street and track applications.