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Plug for Blow Off Valve (Hyundai I20 N, I20 III and Veloster N) - image

Files (4)

bouchon_bov.STEP
STEP
19.5 KB
bouchon_bov.STL
STL
351.6 KB
bouchon_bov_v2.STEP
STEP
30.7 KB
bouchon_bov_v2.STL
STL
15.9 MB
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STL fileRoleSource sizePETG / ASA 20%PETG / ASA 25%100% solidRecommendation
bouchon_bov.STEPAccessory piece19.5 KB STEPSlice fileSlice fileSlice fileSmall functional file: print slowly; consider 80–100% infill for durability.
bouchon_bov.STLPrintable file351.6 KB STLSlice fileSlice fileSlice fileEnsure proper fit and orientation in the slicer to avoid supports if possible
bouchon_bov_v2.STEPPrintable file30.7 KB STEPSlice fileSlice fileSlice fileEnsure proper fit and orientation in the slicer to avoid supports if possible
bouchon_bov_v2.STLPrintable file15.9 MB STLSlice fileSlice fileSlice fileEnsure proper fit and orientation in the slicer to avoid supports if possible

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Mechanical/Functional

Plug for Blow Off Valve (Hyundai I20 N, I20 III and Veloster N)

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Description

Here is a plug for the BOV from the I20N or I20 III. I tried a first model of it that was too big so I remade it to fit perfectly. This plug is made so you can turn your stock BOV to an atmospheric BOV. I've been using it for one month as I'm writtng this and my car still works fine. UPDATE Now, there is a v2 with a small tab inside the plug just for safety measure. It works fine and you don't even need to put a clamp on it now so you can use the clamp left to put a BOV Trumpet (https://www.thingiverse.com/thing:4845954). It might also work on Veloster N as they have the same piping as the I20. Can't test it rn. INSTALLATION On V1 You might want to exchange the two clips on the stock piping in order to fit one clip around the plug. The smaller clip still can fit on the plug. On V2 Simply replace the pipe by the plug as shown on the picture. Here is the tutorial to change your stock bov to an atmospheric stock BOV: https://youtu.be/XoqzL-SvRI4 INFORMATIONS You can also use this plug as a replacement for the plug provided with the Forge Motorsport BOV (https://www.forgemotorsport.co.uk/Hyundai_i20N_Atmospheric_and_Recirculating_Dump_Valve--product--2117.html) I'm providing the STEP file if you want to modify it for any reason (or for another car).

Compatible Cars

Published Jun 30, 2026Updated Jul 15, 2026

Originally published on thingiverse.com by Maxime Tribout (someslavhardbass) · License: CC0

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