+1, much better options for aftermarket tunes than Dinan IMO. Recently had work done at a former Dinan rep/shop that dropped Dinan products altogether as they could never substantiate the claimed results, and their clients were left very unhappy.
Steve knows well how to milk the 'warranty' trump card, but read some more on the E90 (and other) boards and you will see how that veil is easily pierced. Many a Dinan customers have been left stranded on the warranty claim...
2011 BMW E82 1///M: AW, ZPP, ZCV, HK, Sirius, Apps; Akra CF+Valve control, MadDad mids, K&N, Forge FMIC, P3gauge, EuroTails, Tint, CF Mirrors+Spoiler+Roof Wrap, 10mm H&Rs, IND grills+gills, xCDV, LUX AE
2008 Audi B7 RS 4: Sprint Blue, Exclusive Euro Recaro Interior, Premium+Titanium Package, EPL Tune, Stasis Ohlins MS coilovers, Milltek valved exhaust+DownPipes, Stoptech SS lines, Tint, ADR V1, Lidatek, Lamin-X, Rotiform SNA 19x10" wheels, 275/30/19 PSSs, Euro flat-bottom steering wheel, JHM SSK