I had a similar issue with my first r56 S but it turned out to be a fouled spark plug was causing knock at peak boost
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I had a similar issue with my first r56 S but it turned out to be a fouled spark plug was causing knock at peak boost
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That sounds like a possibility. How did you diagnose that the spark plug was the cause?
MINI F55 Cooper S 210
Blazing Red II, 17" Team Dynamics Pro Race 1.2s with Eagle F1s 225/45r17, JCW 210 Tuning Kit, Black Door Handles, Team HEKO Wind Deflectors, Black Grille and Grille Strip, Black Front and Rear Light Surrounds, Retrofitted Driving Modes, JB4 Tune