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N54 possible boost leak?
I got a 2009 135 with 75k miles 6spd bms intakes, tial bov with charge pipe, cat less dps, jb4. Currently car makes hissing noise like air is escaping somewhere while accelerating , no engine codes, rpms going up way to high too quickly without the speedometer equally graduating. Car does in every gear, it will also cut itself off cruise control when needing to accelerate uphill,hoping someone can lead me somewhere
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Emanuel
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