Hi people just became a new member of M5board and got to say some real hardcore enthusiasts here. I am from the UK and purchased my 2005 M5 about 3 weeks ago, i have a few questions to ask the more knowledgable members, but the first is, i went to get it re-mapped and a rolling road session and asked the guy to check it was stock before he did any mapping, the rollers recorded a figure of 561.5bhp, the guy who has been in the business since the late 60's was absolutly gob smacked and couldnt figure out how this came about, especially as i purchased it from a BMW dealership. Even with a previous re-map it should in theory produce about 530-535bhp, so after speaking to numerous tuning companies in the UK and e-mailing several european companies they all said M5 and M6 always give over the 507bhp claimed figure some as much as 525bhp in standard form.

