When 3 other independent shops wouldn't work on my mildly-modified car to clear a check engine light (CEL), the internet led me to Kassel. "No problem" was their reply -- and it wasn't. They sourced the parts, outsourced the fabrication work as needed, and provided timely updates on their findings & estimates to their solutions. Haven't seen a CEL since.
True enthusiasts, earned my trust (and I'm picky). Now they're my go-to shop!