aFe Magnum FLOW Pro DRY S drop-in OE replacement air filter for 2004-2010 BMW 525i, 528i, 530i and 545i (E60) and the Z4 M Coupe and Roadster with the 2.5L and 3.0L inline-six. Built on three-layer oil-free synthetic media that needs no re-oiling, washable and reusable, in a 100% polyurethane frame with an integrated bump seal. Outflows the stock paper filter for added horsepower and torque.
Specifications
| Type | Drop-in OE replacement air filter |
| Media | Three-layer oil-free synthetic (Pro DRY S) |
| Frame | 100% polyurethane with integrated bump seal |
| Service | Washable and reusable; no re-oiling |
| Part Number | 31-10144 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2007 | BMW | 525i | Base |
| 2006-2007 | BMW | 525xi | Base |
| 2008-2010 | BMW | 528i | Base |
| 2009-2010 | BMW | 528i xDrive | Base |
| 2008 | BMW | 528xi | Base |
| 2004-2007 | BMW | 530i | Base |
| 2006-2007 | BMW | 530xi | Base |
| 2004 | BMW | 545i | Base |
| 2006-2008 | BMW | Z4 | M Coupe |
| 2006-2008 | BMW | Z4 | M Roadster |
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
