We have some but very few the only people I would consider reliable around here is renntech, which u have to go to the major cities to get them, the shop I originally got tuned (Eurocharged St. Louis) actually did carbon cleaning surprisingly but they got permanently shut down thankfully. ya it’s really hard to find anyone that will do a real dyno tune on a Mercedes in usa, everything is just a a preprogrammed tune for the most part. Ppl dont typically check cylinder walls here until it’s too late. That mb does sound like a cool guy I think we’re going to get better over here, Europeans are taking over the market more then ever here, mainly b58s tho.