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Message: <blockquote data-quote="Herbert" data-source="post: 605708" data-attributes="member: 18029">Guys,Bernard did my e39 m54 525i remap 2 years ago. After remapped, my engine did feel much smoother with better low end torque.  Many has asked me what gain (hp and torque) did I get after remap?  All I could replied was "I just feel the difference" which isn't right.  I should have done a dyno test before and after so that the gain would be documented. At least we can show the dyno charts to Bernard if we are unsatisfied with the performance after remap. Dyno test cost about RM 100 and just go to Sunway and they are a few workshops with dyno equipment.</blockquote>