If you purchase a used G4 board, you either get 1) a 17.5psi limit 18ohm board, or 2) a 19.5psi limit 15ohm board. It depends on production dates, or if the original owner did a 18ohm to 15ohm modification.
5soko gave the best reasons for getting a G5 board. Add to that, the G5 also had built-in CPS module.
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-Loe P.-
Prior Car:'14 Audi S5 3.0t DSG [ APR ECU/TCU | Pullies + basic bolt-on mods | 10.861@127.90mph ]
Current Car: F82 M4cs | TT-RS | On Order: i4 M50
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