I would like to know how these injectors did fail. Are you running a 12mm pump? I have came to the conclusion that pop set at 170 bar and the 12mm pump is a bad combo. The injectors tend to break springs, this will cause pre-injection and the knock. I have also seen the stock Bosch injectors set at 155 break the spring too.
If you want to send the injectors to me I will drop the pop pressure back down to 155 bar, and I will look into what happened on the two that failed.it will be free of charge just pay to ship them to me.
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