I took my 2018 BMW M3 here for the Dinan performace and suspension upgrade. I believe they are the only INDY authorized Dinan dealer in Maryland; and they did an EXCELLENT job on my M3.They installed the stage 3 tune, heat exchanger and the full suspension (Coilovers, Swaybars, rear end links and tension ball joints) from Dinan. I ALWAYS look for the BEST when it come to performance upgrade on my cars because I don't want to deal with the headache from improper installations and all sort of error lights popping up on the dash. At BMW Excluservice, they proved to be one of the best, after the job was completed on my car they did a quality control test/run to see if all the new parts are properly working before releasing it. I got the car back with 110% satisfaction! The car drives amazing and not one abnormal/clunking noise from the new suspension setup, which tells me that they took their time in getting the job done right. This is my go to shop from now on for any BMW/Mercedes work related because they truly live up to their business name...Also, The shop is super clean! I've never seen such a clean car shop.
Wow, we are truly humbled by your kind words. We are enthusiasts and your M3 project was a lot of fun for us. We are also humbled by dinan to be the only independent Dinan dealer in the state of MD. We hope you have a lot of fun taking your M3 to the track!! Thank you!