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      06-15-2018, 07:16 PM   #7
socale39
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Drives: 04 545i SMG
Join Date: Jan 2011
Location: California

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I’d be concerned about the fuel pressure. This is how the JBD gets more power and most people will only max out at 80% on a stock tune. I’d be curious to know if the other tune has increased the fuel pressure and by how much as that could be compounded with the JBD. The issue is when you have too much pressure there is a valve to control it, if you are constantly making that valve work and it eventually fails, then what?
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