blow off valve

  1. samlux

    What experiences do people have with fitting Blow off Valves?

    Hi, I have a 2015 Levorg GT-S imported from Japan and I want to fit a Blow off Valve to it but I would like to know if my car will require a remap for it to run properly. I understand for any performance increase etc it will require a remap but until I look into doing that can I fit one and will...
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