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Message: <blockquote data-quote="seewai" data-source="post: 568424" data-attributes="member: 11307">Yup, bro SilverBullet has well covered the main points.As for the mods and differences which could cause the difference in figures, she's running on aftermarket exhaust, which is meant for 2.5L Inline 6. Before the exhaust job, the figures were 11 PS less and 6 NM less, for the same 2.5L engine setup.She's also still running on 2.5L ECU/DME/IKE etc electronics and was optimally tuned by BVO to my driving style.When I was at JC Racing, when nobody was around I checked the machine's Dyno history and saw a E60 2.5L, probably stock with auto-tranny, at 154PS on-wheel, which is close to my baby's number before the exhaust job.Finally, the 40 PS gain justifies the difference between M54B25 and M54B30, 192 vs 231. So I can confirm the workshop did not tipu me lah hehehe.</blockquote>