I was looking at the door jam and the recommendation is 2.4 bar all round for light load and 2.7 / 2.9 for heavy load. On that basis that's a range of 34.8psi to 39/42 psi (based on 18s with load rating of 93 F 97 R and max speed rating Y).
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///M3 | E90 LCI | Space Grey | Fox Red with CF Structure | 6MT | 260M | My build
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