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Is the 9 bar mod worth it? From my basic understanding it’s just a spring change.
It’s not even that. You just back off the adjuster on top of the spring on the OPV. You need a pressure gauge on your portafilter to do this, even if you buy another spring.
Stock is 13 bar or something. I’ve got mine set at 10.
Is the 9 bar mod worth it? From my basic understanding it’s just a spring change.