[Hoops]

With all due respect i wouldnt let turbochips anywhere near my M3 - remapping a diesel RRS and an E92 V8 M3 are poles apart and require a lot more technical skill and know how - you really want a specialist company, like Evolve, who have done the work on that exact model and know the ins and outs. Just my 2p worth - but do some proper research first before letting any old numpty loose on your pride and joy. Also, bear in mind that you will always get more impressive results remapping a turbo charged car as opposed to an N/A engine - the gains are often not that impressive with N/A cars and without doing further and more involved engine mods, like cams/superchargers/intercoolers/pulleys etc etc, you may be disappointed in terms of bang for buck. I would look at an exhaust mod first before remap, moreover race cats/manifolds etc as this will further enhance the remap. Do some research before jumping in.