Blown Turbo - still under warranty - chances of replacement?

[Sub-MkV]

Yup, JB is tuned for stock downpipe as standard. My JB+ basically became useless when I went catless. Overboosting, throttle closures, etc.

Did you ever try the jb plus on a boost setting that was much lower like a 2-2.5 psi with catless?

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[ColonelAdama]

Did you ever try the jb plus on a boost setting that was much lower like a 2-2.5 psi with catless?

I tried it on max, then on default. I'm sure at a low settings, it would have been fine or at least better.