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  • BMW Pre-Pregged Carbon Fiber TOPSTH Designs Rear Diffuser for G80 M3 & G82 M4 (2020+)
  • BMW Pre-Pregged Carbon Fiber TOPSTH Designs Rear Diffuser for G80 M3 & G82 M4 (2020+)
  • BMW Pre-Pregged Carbon Fiber TOPSTH Designs Rear Diffuser for G80 M3 & G82 M4 (2020+)
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BMW Pre-Pregged Carbon Fiber TOPSTH Designs Rear Diffuser for G80 M3 & G82 M4 (2020+)

$1,167.00 USD
$1,219.00 USD
$1,167.00 USD
-4%
Low stock: 10 left

Description

Upgrade your BMW G80 M3 or G82 M4 with our topsth Designs Rear Diffuser, featuring an integrated F1-style brake light for a motorsport-inspired touch. This premium diffuser replaces the standard OEM plastic components with high-quality pre-pregged dry carbon fiber—the lightest and strongest material available.

Designed for both aesthetics and performance, it enhances the aggressive look of your BMW while improving aerodynamics and visibility. Perfectly molded from the OEM bumper for a precise fit, this rear diffuser is the ultimate upgrade for enthusiasts seeking a bold and functional enhancement.

Fitment: G80/G81 M3 (2020+) | G82/G83 M4 (2020+)
Material: High-Quality Pre-Pregged Dry Carbon Fiber (Gloss 3*3 Twill Weave)
Key Features: OEM Quality, F1-Style Brake Light, Precisely Molded for Perfect Fitment
Lead Time: Made to Order (3-5 Weeks Production Depending on Size)

Shipping and Returns

Shipping may vary based on order size. Though we aim for fast delivery, larger orders may take longer. Our priority is providing the best shipping times possible for all customers. Rest assured, we're committed to delivering your orders promptly and efficiently, striving to minimize any delays.Your satisfaction is our top concern, and we'll do our utmost to ensure a smooth shipping experience for you.If this product is in stock, we offer same day dispatch during business hours, and much faster delivery.

Return Policies

We offer a 30-day return policy from the date of delivery.

We cover return shipping for quality or shipping errors; otherwise, it’s the customer’s responsibility.

Items must be unused, in original packaging, with all accessories and proof of purchase.

Contact our support team (support@topsth.com) with your order number and reason.

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If you have any urgent questions, feel free to reach us on WhatsApp. We're available 24/7 to assist you.

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Select your desired product, click "Add to Cart," and proceed to checkout from the cart page.

After placing an order, you’ll receive a confirmation email with details and a tracking link.

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In-stock items: Ships within 7 business days.Custom items: Approx. 30 days for production and inspection, then shipped.
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