My 133K R56 is in the shop with a failed engine. The shop wants to replace with a used engine with 36K miles. They want to re-use my turbo and catalytic converter. I would like to include the “newer” turbo and converter from the donor car. This raises a question; if the donor engine is not previously turbocharged, can the shop simply install my turbo on this engine? I assume the compression ratio is different for the non-turbo engines, as well as other differences. Thoughts? Thanks for your input!