shop in illinois that deals with e46 m3's performance

Wanted a good shop that does basic e46 m3 maintenance such as vanos valve adjustments. But also a shop that can install headers and exhaust, also a shop that can do differential ring and pinion swaps, possibly install supercharger systems if I end up getting one.. just a shop that can keep my e46 m3 running tip top, and can do my mods as I get further and further in debt cause of it! haha



heck if they can program and tune these cars on an actual dyno that be sweet too.. rather have a custom tune than a mail order anyday..