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 |