This drop-in air filter kit replaces the OEM paper elements with multi layered cotton filters that flow 18.6% more than stock (1022 CFM versus 862 CFM per bank at 28 inches of water). It fits both the factory F97 X3M / F98 X4M airbox and the Dinan High Flow Carbon Fiber Intake (D760-0054), delivering gains of up to 7 wheel horsepower and 8 lb-ft of torque at 4750 rpm. Steel wire mesh backing adds strength and dent resistance across the full set of four filters.
Specifications
| Type | Drop-In Air Filter Kit |
| Material | Multi-Layer Cotton with Steel Wire Mesh |
| Quantity | 1 kit (4 filters) |
| Part Number | D403-0007 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2024 | BMW | X3 | M |
| 2020-2022 | BMW | X3 | M Competition |
| 2020-2025 | BMW | X4 | M |
| 2020-2022 | BMW | X4 | M Competition |
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
