The ricer/import guys have GAS engines, which respond to BIGGER turbos. Our diesels would choke on a bigger turbo. Now if we could get something that would bolt up, in the same size, but with lighter weight cartridge and/or freer spinning bearings, that could posibly provide some improvement - *maybe*. The MB engine reaches full boost very early, so I don't quite understand how a different turbo is supposed to help much anyway. Intercooling is the way to go for real power gains on an MB turbodiesel.