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ECU reprogramming STAGE 4

ECU reprogramming STAGE 4 for 405 T16 cars, original or slightly modified (freed intake/exhaust, modified intercooler circuit).

  • all parameters from STAGE 3 improved
  • highest power output available in all gears (unlocked boost in 1st gear)

More improvements specific to this STAGE 4:
  • specific improved ignition timing
  • fully optimized fueling ratio (AFR=12 at full load, perfect on this engine)
  • turbo boost pressure raised up to about 2.0bar (depending on turbo intake/exhaust work)
  • constant overboost
  • optimised variable geometry settings (higher boost at low rpms)
  • custom rpm limiter (defaut at 7200 rpm)
  • high boost pressure in 1st gear

Output power: up to 270 hp depending on intake/exhaust work

  • ECU modification (socket installation for any further upgrade)
  • STAGE 3 chip installation
  • waterproof ECU closing (side cover only)


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