BMW 5 Series F90 M5 CS Style Carbon Fiber Rear Diffuser (2020+)
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
CS Style Carbon Fiber Rear Diffuser for BMW M5 F90 (2020+)
Pre-preg dry carbon fiber rear diffuser in CS styling for the F90 M5, inspired by the M5 CS. An aggressive, sculpted design that sharpens the rear end and improves airflow. Available with or without integrated LED brake lights — a direct replacement for the factory diffuser.
Build
- Material: 100% pre-preg dry carbon fiber, vacuum-processed for superior strength and a flawless finish
- Weave: 2x2 twill pattern with distinctive visual depth
- Finish: Gloss clear coat with UV-resistant protection to prevent fading
- Weight: Lightweight construction with an excellent strength-to-weight ratio
- Style: CS-inspired aggressive rear styling
Configuration Options
- With Brake Lights: Integrated LED brake lights for a functional, contemporary look
- Without Brake Lights: Clean, minimalist design that focuses on the carbon fiber aesthetic
Design & Aerodynamics
- Enhanced Airflow: Optimized design channels air more efficiently under the vehicle
- Increased Downforce: Improved rear aerodynamics enhance stability at high speeds
- Aggressive Rear Profile: Sculpted styling for a striking, race-ready presence
Fitment
- 2020+ BMW M5 Sedan (F90)
Package Contents
- 1 x CS Style Carbon Fiber Rear Diffuser
Installation
This diffuser is a direct replacement using the factory mounting points — the rear bumper is removed to fit it, and some heat shield adjustment may be required due to the aggressive CS design. Most installs take around 2–3 hours with standard automotive tools. Intermediate to advanced skill level; professional installation is recommended for the best fitment.
Before You Install
Please inspect the diffuser and confirm the carbon weave, finish, and fitment before installation. If you have a fitment question, contact us with your year and model and we'll help confirm compatibility.
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.