do88 designed these S55 turbo inlets around a detailed 3D scan of an M3 Competition engine bay, replacing both restrictive factory inlets with a matched front and rear pair. The rear inlet is a custom aluminium pipe with a welded CNC-machined turbo flange; the front inlet is a freeform steel wire reinforced silicone hose that meets the turbocharger through a CNC-machined radius adapter. Bore grows to 63mm from the factory 55mm for 33 percent more flow area, and do88 measured 778 CFM against 690 CFM stock at 75 mbar (1.09 psi) pressure drop, 13 percent higher flow. Matte black hose clamps are included.
Specifications
| Type | Front and rear turbo inlet pipe kit (aluminium pipe plus reinforced silicone hose) |
| Material | Aluminium pipe with CNC-machined flange and steel wire reinforced silicone hose |
| Finish | Black hoses with matte black hose clamps |
| Turbo Compatibility | 54mm hybrid turbocharger compressor inlet |
| Inlet Diameter | 63mm (OEM 55mm), 33% larger flow area |
| Tested Flow | 778 CFM at 75 mbar (1.09 psi) pressure drop, versus 690 CFM OEM |
| Included | Front turbo inlet, rear turbo inlet, matte black hose clamps |
| Fitment Note | Some screws, nuts and gaskets may need replacing during install and are not included |
| Quantity | 1 kit (pair of inlets) |
| OEM Replacement | 13717846272, 13717846271 |
| Part Number | do88-kit205-S-ID54 |
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
