The S55 feeds its two turbochargers through a pair of small OE panel filters that restrict airflow once the engine is tuned. do88 replaces both boxes with fully enclosed housings built around a 3D scan of the engine bay, each carrying a large BMC double cone filter, plus 76mm (3 in) mandrel-bent seamless aluminum tubing routed with as few bends as possible. Rubber-sealed heat shields and polycarbonate lids keep engine bay heat out of the filters. Flow testing shows 769 CFM at 0.025 bar (0.36 psi) pressure drop against 678 CFM for the OE setup, 13 percent higher, and dyno work on a BootMod3 Stage 1 (93) car returned +10 hp peak with up to +20 hp and +40 Nm in the mid range.
Specifications
| Type | Fully enclosed twin cold air intake system with BMC double cone filters |
| Material | 76mm (3 in) mandrel-bent seamless aluminum intake pipes; polycarbonate air box lids |
| Finish | Matte black structure powder coat pipes and heat shields; satin black lids |
| Airflow | 769 CFM at 0.025 bar (0.36 psi) pressure drop vs 678 CFM OE, 13% higher |
| Power Gain | +10 hp peak, up to +20 hp / +40 Nm mid-range (BootMod3 Stage 1 93 tune) |
| Filter Media | Regenerable BMC cotton double cone filters |
| Quantity | 1 (complete kit with two air filter housings) |
| Part Number | LF-150-SS |
| OEM Replacement | 13717846269, 13717846268, 13727843284, 13727843283 |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2019-2020 | BMW | M2 Competition (F87) | S55 |
| 2015-2018 | BMW | M3 / M3 Competition (F80) | S55 |
| 2015-2020 | BMW | M4 / M4 Competition / M4 GTS / M4 CS (F82/F83) | S55 |
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
