I did a search and I could find only one brief post on the Bosio experience in the OM606 engine. I need some more feedback, specifically how they're holding up and if there's any difference in engine sound or performance compared to a good working set of German Bosch nozzles. Please share, even if you don't have an OM606 but have longer-term experience with these nozzles.

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2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL