GReddy Rocket Bunny Rear Diffuser

2016–2021 Mazda Miata 2.0L

Part #: 17040234

Overview

The GReddy Rocket Bunny Rear Diffuser is a high-quality aerodynamic upgrade designed specifically for the Mazda Miata from 2016 to 2021. Crafted to enhance both the aesthetic appeal and aerodynamic performance of your vehicle, this diffuser is an essential addition for enthusiasts seeking a more aggressive look and improved downforce. Whether you're customizing your Miata for street driving, spirited canyon runs, or track days, this diffuser helps you achieve a more planted stance and better airflow management.

Manufactured by GReddy, a renowned name in the performance automotive industry, this rear diffuser combines style with function. It is engineered to complement the Rocket Bunny widebody kit, but also works seamlessly with stock or other aftermarket modifications. Installing this diffuser not only elevates the visual presence of your Miata but also contributes to improved aerodynamic efficiency, helping to reduce lift and increase stability at higher speeds.

Key Features

The GReddy Rocket Bunny Rear Diffuser is built with performance and durability in mind, featuring advanced materials and design elements that optimize airflow and durability.

• Constructed from lightweight, durable fiberglass or ABS plastic designed to withstand the rigors of daily driving and spirited use.
• Precisely molded to fit the contours of the Mazda Miata's rear bumper, ensuring a seamless and OEM-like fitment.
• Aggressive, aerodynamic styling inspired by the iconic Rocket Bunny widebody kits, giving your Miata a bold, race-inspired appearance.
• Designed to improve airflow underneath the vehicle, reducing turbulence and increasing downforce for enhanced stability at high speeds.
• Easy to install with pre-drilled mounting points that align with factory or aftermarket body panels, requiring minimal modifications.
• Finished with a high-quality coating or gel coat that resists UV rays, scratches, and environmental wear, maintaining its appearance over time.
• Compatible with various aftermarket accessories, allowing for further customization of your vehicle’s aerodynamic setup.
• Designed for enthusiasts who want to elevate their Miata’s style while gaining functional aerodynamic benefits.

Construction & Design

The GReddy Rocket Bunny Rear Diffuser features a one-piece, hand-laid fiberglass or ABS construction that ensures strength and flexibility. Its aerodynamic design incorporates multiple fins and vents that help direct airflow efficiently, reducing drag and lift. The diffuser’s aggressive styling is complemented by precise detailing and a smooth finish, making it a perfect match for the sporty look of the Mazda Miata.

Manufactured with attention to detail and quality control, this diffuser is engineered to fit perfectly without the need for extensive modifications. Its lightweight design ensures that it does not add unnecessary weight to your vehicle, preserving the nimbleness and handling characteristics of the Miata. The durable finish resists environmental damage, keeping your car looking sharp for years to come.

Installation & Fitment

The GReddy Rocket Bunny Rear Diffuser is designed as a bolt-on upgrade that requires no cutting or drilling in most cases. It mounts directly to the factory rear bumper or Rocket Bunny widebody kit using pre-drilled holes and supplied hardware. The installation process is straightforward and can typically be completed within a few hours with basic tools. No additional tuning or adjustments are necessary, making it an accessible upgrade for DIY enthusiasts and professional installers alike.

• Pre-drilled mounting points for quick and secure installation
• No cutting, drilling, or complex modifications required in most applications
• Compatible with factory or aftermarket rear bumpers and widebody kits

What's Included

• GReddy Rocket Bunny Rear Diffuser
• Mounting hardware and brackets
• Installation instructions

Ideal For

• Mazda Miata owners looking to enhance their vehicle’s aerodynamics and appearance
• Performance enthusiasts seeking improved stability at high speeds
• Customizers aiming for a bold, race-inspired look
• Track day participants and spirited drivers