Dinan Carbon Fiber Cold Air Intake - BMW M5 (F90) 2018-2023

The Dinan Cold Air Intake for the F90 M5 rebuilds both airboxes in gloss UV-coated 2x2 carbon fiber and adds a functional secondary inlet wishbone that draws ambient air from a central hood scoop while deflecting engine heat. The sealed, enlarged boxes run 31% larger than stock and carry filters with 35% more area at 80 square inches per side, flowing 637 CFM per bank versus 575 CFM stock, an 11% gain. The result is greater turbo efficiency, reliability, and headroom with sharper throttle response.

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