Has anyone had any experience of the above company? I have seen they are big in the scooby scene and also a number of M3/M5/Z4M owners have recommended in the past....Hand made systems, can do anything asked......Have contacted them and will probably drop down Sat morning for them to have a look over the car and see what they can do/offer.
http://www.haywardandscott.com/about
Found a quick vid of an E92 M3