BMW G82/G83 M4 Carbon Fiber Rear Diffuser by Vorsteiner

Aggressively redefine the rear profile of your BMW G8X M4 with the Carbon Fiber Rear Diffuser by Vorsteiner. Designed to enhance aerodynamic efficiency and visual impact, this sculpted diffuser features deep vertical fins that manage airflow and increase rear-end stability—especially at high speeds.

Constructed from aerospace-grade pre-preg carbon fiber and cured using autoclave technology, the diffuser offers lightweight strength, flawless fitment, and a premium high-gloss finish that complements the M4’s factory design.

Key Features:

• Compatible with BMW G82 and G83 M4 models

• Enhances rear airflow and improves aerodynamic performance

• Aggressive multi-fin design adds race-inspired styling

• Manufactured from autoclave-cured pre-preg carbon fiber

• UV-resistant high-gloss finish ensures long-term durability and carbon clarity

• Direct bolt-on fitment—OEM-compatible, no modifications required

• Complements Vorsteiner’s full carbon aero package for a cohesive exterior upgrade

An essential rear-end upgrade for M4 owners who want to combine cutting-edge performance with Vorsteiner’s signature carbon fiber craftsmanship.

Looking for a bit of flexibility when it comes to paying? We've got you covered. AUTOID has partnered with a number of payment providers to ensure a seamless buying experience.

Klarna
Select 'Klarna' at checkout to benefit from a number of finance options at checkout including:

• Pay Later - Delay payment by up to 30 days, interest free
• Split Payments - Split payments in 3 up to 3 months, interest free
• Installments - Split payments up to 6 months interest-free, up to 24 months interest bearing.
• 6 months - Interest-free Credit- Minimum: £250- Maximum: £5,000- 0% down payment/deposit​
• 12 months - Interest-free Credit- Minimum: £250- Maximum: £5,000 Deposits are available and determined by the customer​:
  - 0% down payment for orders between £250 and £1000 (orders cannot be below £250)
  - 10% - 50% down payment for orders between £1000.01 and £5000
• 24 months - Interest-bearing Credit - 18.9%- Minimum: £250- Maximum: £5,000
  Deposits are available and determined by the customer:
  - 0% down payment for orders between £250 and £1000 (orders cannot be below £250)
  - 10% - 50% down payment for orders between £1,000.01 and £5,000

Klarna's Pay in 3 / Pay in 30 days are unregulated credit agreements. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. Ts&Csand late fees apply.

Clearpay
Clearpay lends you a fixed amount of credit to allow you to pay for your purchase over 4 instalments (T&C's and eligibility criteria apply). They're ideal for purchases under £1000 and always offer interest-free*. For more details on how to use Clearpay to secure your order, get in touch with our team.

0% Interest. Select 'Clearpay' at checkout.

Please shop responsibly and visit lender websites for more information. All finance options are suitable for individuals 18+.