I'd change the map sensor for a cossie one (place after charger) if i were you.... not a good idea to map on vacuum and calculated boost if you've not done it before.
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Team Supercharged Gti-6NV Motorsport
Automotive Performance Tuning
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ECU Remapping/ DPF removal
VAG/BMW Diag and Option Coding
Peugeot Planet ECU coding/transponder programming etc
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Project S6