Great and informative thread as usual, Tony. Very impressive! I think you're the first person to actually give a reasonable amount of information about an working turbo upgrade. ASR's upgrade should work as well, but no end user has been forthcoming with any info on this just yet.
Great to know there's such an option out there, and even with the possibility of a remap (which is what I would be more comfortable with than the piggyback that ASR is doing with the PROCede). I see that my next visit to the UK promises to be even more interesting...!
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