Mugen Rear Carbon Diffuser (GROUP B) - Honda Civic Type R FL5
Couldn't load pickup availability
SKU
SKU
Shipping and Delivery
Shipping and Delivery
Application
Application
Notes
Notes
Inventory Status Details
Stock levels are verified and updated in real time for accurate availability
- In Stock: Product is in stock & ready to be dispatched.
- Low Stock: Limited stock remaining - this product is almost gone.
- Out of Stock: Sold Out, this product is currently out of stock but will be restocking soon.
- Backordered: Product is currently not in stock and will be shipped once available. Backordered products are Special Order products, Made to Order products and Pre Order Wheels.
-
Arriving Soon/Incoming Stock: Product has been ordered and currently in production or on the way to our warehouse. Check each product for the estimated arrival time.
Labels:
- Special Order: Product is in stock at the manufacturer and can be ordered upon request.
-
Made to Order: Product will be made once an order has been placed.
Wheels Stock: - In Stock Wheels: Wheels are in stock & ready to be dispatched.
- Incoming Wheels: Wheels are currently not in stock however have been ordered and are on their way to Garage IMMI. Check each product for the estimated arrival time.
- Pre Order Wheels: Wheels are available for purchase in advance. Typically made to order, these wheels will be ordered from the manufacturer once payment or a deposit is received. Check each product for the estimated arrival time.
Mugen Rear Carbon Diffuser (GROUP B) – Honda Civic Type R FL5
The Mugen Rear Carbon Diffuser (GROUP B) is engineered to optimise underbody airflow and improve the high-speed stability of the Honda Civic Type R FL5. Developed using detailed aerodynamic analysis, its precisely shaped channels manage the air exiting beneath the vehicle to generate additional rear downforce, improving balance and control.
A built-in upper ventilation opening allows high-pressure air trapped inside the rear bumper to escape cleanly toward the back of the car. This reduces turbulence, lowers drag, and contributes to smoother overall airflow.
Made from lightweight and rigid CFRP (carbon fibre reinforced plastic), the diffuser provides durability while reducing weight compared to the factory part. Sitting around 22 mm lower than the OEM rear under spoiler, it gives the FL5 a more assertive rear profile with genuine aerodynamic benefit.
This diffuser is designed exclusively for use with the Mugen sports exhaust system to ensure precise fitment and maximum airflow efficiency.
Key Features
- Optimised diffuser channels increase rear downforce
- Upper ventilation opening reduces drag by releasing trapped air
- Designed to pair specifically with the Mugen sports exhaust system
- Lightweight, durable CFRP construction
- Sits approximately 22 mm lower than the factory rear under spoiler
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
For more information about our payment methods, please visit our Payment Options page.


