Agree to disagree. Engine compartment is fairly well sealed. Intake air temps measured by obd on my friends 335 were significantly higher using the bms. He loved the sound but removed the intake. The one may be different but I'm not willing to pay to find out.
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'07 Z4MR '22 GT4 '18 GT3 '16 GT4, '16 M2, '14 X1, '13 135is, '06 330i, '03 323 Ci, '01 330i, '99 M3 (RIP), '96 318is, some non-BMWs
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