do88 developed this N55 turbo inlet from a 3D scan of the whole intake area, then verified the finished design with computational flow dynamics and on a Superflow SF1020 flow bench. The kit uses freeform moulded silicone hoses in black with a CNC-machined adapter at the turbocharger and quality hose clamps, opening up the restrictive factory inlet path ahead of the compressor where vacuum and inlet air temperature cost the turbo airflow. This version is sized for a 59mm turbocharger compressor inlet, and do88 measured 1049 CFM against 660 CFM for the OEM inlet at 0.175 bar (2.54 psi) pressure drop, 59 percent higher flow.
Specifications
| Type | Turbo inlet hose kit with CNC-machined turbo adapter |
| Material | Freeform moulded reinforced silicone with CNC-machined aluminium adapter |
| Finish | Black |
| Turbo Compatibility | 59mm turbocharger compressor inlet |
| Tested Flow | 1049 CFM at 0.175 bar (2.54 psi) pressure drop, versus 660 CFM OEM |
| Included | Turbo inlet hose, CNC-machined turbo adapter, hose clamps |
| Quantity | 1 kit |
| OEM Replacement | 13717599290, 13717599286 |
| Part Number | do88-kit213S-59 |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2010-2013 | BMW | 1 Series (E82 / E88) | 135i / 135is (N55) |
| 2010-2013 | BMW | 3 Series (E90 / E91 / E92 / E93) | 335i / 335iX (N55) |
| 2012-2015 | BMW | X1 (E84) | 35i (N55) |
Shipping
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Returns
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- 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.
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Full details: Shipping Policy · Refund Policy
