Best car shop in Atlanta?

[ekimb086]

Are there are any 6 owners in the Atlanta area that have a preferred shop for mods and performance upgrades, especially with employees who really know what they're doing with BMW mods?

I got my 6 last Sept (2013 F13 2D M Sport) and want to begin modding and upgrading the car a bit - exterior parts, a few engine/performance mods. But the mod market for 6-series is very barebones in comparison to other models and as much research as I'm doing, I still feel lost without the help of a shop guy.

I currently service my vehicle at the dealership and at Butler Tires for my rims/tires but I'm not sure how great they are at overall mods.

Any advice would be greatly appreciated, thanks!

And if you do care or if it helps, I've listed most of the mods below in case:
-------------------------------------------------------------------------------------
Exterior
Spoilers/Skirts: sides, front lip, rear trunk lid, rear roof
Diffuser
Door handle cover accent
Custom hood
Misc. body accents/trims

Performance
Rims/Tires
Brakes
Suspensions
Air Intake
Change exhaust setup to 4 pipes instead of stock 2
Possibly a supercharger but leaning more towards hell no
-------------------------------------------------------------------------------------