Everyone that is thinking of getting Wheels machined to change Offsets, dont forget that MOST wheels cannot take having 20+mm machined off them. Will make the mounting face too thin. Normally, even if there is enough meat there, the Bolt holes will be deeper set on a low offset wheel, meaning that once you have machined them, the Bolt hole will be very shallow. Remember that regardless of offset, most cars take roughly the same length Bolt. Take care, IMO its not worth the risk.