Newsletter Sign Up
Receive our latest updates about our products and promotions.





Couldn't load pickup availability
Worldwide Direct. Premium Parts at Your Doorstep.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Elevate the rear-end aesthetics and aerodynamic profile of your Infiniti Q50 with the CMST Carbon Fiber Rear Diffuser. This precision-engineered component is designed to replace the factory rear bumper valance, providing a dramatically more aggressive and performance-oriented look. Expertly crafted to fit the Infiniti Q50 sedan from the 2014 through to the 2022 model years, this diffuser is a direct statement of high-end tuning from the renowned CMST brand.
Constructed from authentic, real carbon fiber, this diffuser combines lightweight strength with visual prestige. The material is protected by a high-quality UV-resistant clear coat, ensuring the signature weave resists fading and yellowing from sun exposure, maintaining its deep luster and finish for years to come. The standard offering features a classic 3k (2x2) woven pattern with a high-gloss finish, delivering exceptional depth and reflection.
All CMST carbon fiber parts are supplied and guaranteed by AME Motorsport, your trusted source for premium Australian automotive enhancements.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Receive our latest updates about our products and promotions.
Thanks for subscribing!
This email has been registered!