Two stories
1) When I had my Toyota MR2, I’d have problems with some shops not knowing how to work on it, so I started going to the local dealer. One time I had problems with one of the rear calipers not releasing. Took it in and they quoted me $1200 using Toyota parts or $900 using aftermarket parts. Said thanks but no thanks. Talked with a guy I worked with and to and he said he’s done brakes, so get him a case of beer and the parts and he’ll show me how to do it. End up costing me less than $400.
2) My Ford Ranger exhaust system needed a complete replacement. Went to a chain muffler place aand nd they quoted me over $1000. Went to my regular mechanic and he did everything the muffler shop said was needed for under $300