Honda SH Intake Cone - Performance Kit
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Bill of Materials
Description
Optimize the carburetion and sound of your SH 125/150 without ECUs.
I designed this intake kit to solve the original airbox's "choking" in the Honda SH. The cone's profile is designed to speed up the incoming airflow, ensuring a noticeable increase in acceleration and a deeper, sportier sound. It's the ideal solution for those who use a sport air filter but want that "something extra" without having to remap the ECU.
To maximize performance, a light sanding inside the cone will reduce air friction.
Key Features:
- 2-Part Design: Optimized to combine structural rigidity and airtight sealing.
- Extended Compatibility: Tested on Honda SH 125/150 models from 2017 to 2026 and OTHERS.
- Intake Cone: The "core" part of the project, responsible for the Venturi effect - ABS or PETG is mandatory. Absolutely avoid PLA: temperatures under the seat and vibrations would cause it to deform quickly.
- Airbox Connection: The fitting designed to perfectly adapt to the original inlet. - I strongly recommend TPU (95A) for its ability to absorb vibrations and ensure a watertight seal. If you don't have TPU, use PETG, but pay attention to the sealing.
As this component is subject to strong vibrations and suction, secure the cone to the connection and airbox with silicone or safety ties. Make sure there are no moving parts that could be sucked in.
Boost Me (for free)
If you feel the difference in throttle response, give me a Boost and upload a photo of your setup! If you have any doubts about tolerances for your specific year, write to me in the comments. Happy tuning!
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.





















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