Dinan Carbon Fiber Cold Air Intake - BMW M550i / M850i 2019-2026

The Dinan carbon fiber cold air intake feeds the twin-turbo N63 V8 in the M550i and M850i more cold air with less restriction, delivering top end gains of up to 17 WHP and 18 lb-ft of torque at 5500 RPM with no other modifications. It retains the factory lower boxes for simple installation while enlarging the air box lids, increasing volume by 54% and making room for bespoke high-flow cone filters with 22% more surface area than the factory panels (102.1 sq in vs 76.3 sq in). An organically shaped intake pipe smooths the path into each turbo, and the sealed 2x2 gloss carbon weave construction ensures only cooler outside air is drawn in while adding a premium underhood look.

Specifications

Documents: Installation Instructions (PDF)

This part fits:

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy