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    Headgames S55 spring / stud kit

    From their IG today. Word is they're trying some new stuff with the valve springs that will trickle down to N54/55 if it works out. Any important info / details to ask about their setup? I know nothing about valvetrain stuff
    • veer90
    • Thread
    • head studs headgames s55 springs valvetrain
    • Replies: 14
    • Forum: S55
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