GReddy Wide Body Boss Rear Diffuser

1992–1995 Mazda RX-7

Part #: 17040309

Overview

The GReddy Pandem Wide Body Boss Rear Diffuser is a high-performance aerodynamic component designed specifically for the Mazda RX-7 from 1992 to 1995. Crafted to enhance your vehicle's downforce and stability, this diffuser is an essential upgrade for enthusiasts seeking improved handling and a aggressive, race-inspired look. Whether you're building a show car, track day weapon, or a spirited street machine, this rear diffuser helps you achieve a more aerodynamic profile and better airflow management at high speeds.

Manufactured by GReddy, a renowned name in the performance automotive industry, this wide body diffuser combines quality materials and precise engineering to deliver both form and function. Its design not only boosts your RX-7's aerodynamic efficiency but also complements the vehicle's aggressive stance, making it a perfect addition for those looking to stand out while improving performance.

Key Features

The GReddy Pandem Wide Body Boss Rear Diffuser features a range of technical and design elements that set it apart:

• Constructed from durable, lightweight fiberglass or carbon fiber (depending on specific model options), ensuring strength without adding unnecessary weight.
• Designed with a wide body profile to match the RX-7's flared fenders, providing a seamless, integrated appearance.
• Optimized aerodynamic shape to increase downforce and reduce lift at high speeds, improving stability during spirited driving or track use.
• Features precise mounting points that align with factory or aftermarket body panels for easy installation.
• Includes venting and diffuser fins engineered to channel airflow efficiently underneath the vehicle, reducing turbulence and drag.
• Finished with a high-quality, UV-resistant coating to withstand the elements and maintain its appearance over time.
• Designed with a focus on fitment and compatibility, ensuring a clean, professional look after installation.
• Part of the Pandem wide body kit lineup, offering a cohesive aesthetic for custom RX-7 builds.
• Ideal for enthusiasts who want to improve their car's aerodynamic performance while enhancing its aggressive styling.

Construction & Design

The GReddy Pandem Wide Body Boss Rear Diffuser is meticulously engineered using CAD software and tested through wind tunnel simulations to maximize aerodynamic efficiency. Its one-piece fiberglass or carbon fiber construction provides a lightweight yet robust structure capable of withstanding the rigors of high-speed driving. The wide body design complements the RX-7's flared fenders, creating a cohesive and aggressive appearance that enhances the vehicle's overall stance.

The diffuser's fins and venting channels are precisely shaped to direct airflow smoothly underneath the car, reducing turbulence and increasing downforce. The high-quality finish ensures durability against UV rays, road debris, and weather conditions, maintaining its aesthetic appeal over time. Installation involves mounting to the existing bodywork using supplied hardware, with no need for extensive modifications or cutting, making it suitable for both novice and experienced enthusiasts.

Installation & Fitment

The diffuser is a bolt-on upgrade that mounts directly to the rear of your Mazda RX-7 (1992–1995). It is designed for straightforward installation with existing mounting points, and no cutting or drilling is typically required. The process involves aligning the diffuser with the vehicle's bodywork and securing it with the included hardware. For optimal results, some trimming or minor adjustments may be necessary depending on your specific vehicle modifications.

• Easy bolt-on installation with factory or aftermarket mounting points
• No cutting, drilling, or complex modifications required in most cases
• Designed for a precise fit on the 1992–1995 Mazda RX-7

What's Included

• GReddy Pandem Wide Body Boss Rear Diffuser
• Mounting hardware and brackets
• Installation instructions

Ideal For

• Mazda RX-7 owners looking to enhance aerodynamics and aesthetics
• Performance enthusiasts seeking improved high-speed stability
• Custom car builders aiming for a race-inspired look
• Track day drivers wanting better downforce and handling