BMW Club GB: Dyno Tuning Day A lot of very expensive BMWs were dyno tested, but this E30 M3 fitted with a heavily modified race engine attracted the most attention. Related postsLaunching our TT & S3 300bhp Conversion KitsJune 21, 2012My Remapped/Tuned Mini Cooper by BHP UKMay 9, 2012BHP UK & Astra Owners NetworkFebruary 19, 2012Ayrton Senna’s McLarenJanuary 12, 2012VW Transporter gets BHP’dDecember 7, 2011Remapped Skoda OctaviaOctober 26, 2011