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Havok Engineering Nissan S14A SR20DET Stage 1A ECU Upgrade Board

Havok Engineering Nissan S14A SR20DET Stage 1A ECU Upgrade Board

  • $19900

The Real Deal - Havok Engineering tuned daughterboard upgrade for the Nissan S14A (Facelift / Kouki) Silvia with an SR20DET engine. Designed to fit in the factory ECU, these remap the ECU with performance settings. These are available for Manual Transmission cars.


  • Performance tuned fuel and ignition maps
  • The 180 km/h speed cut has been removed.
  • The rev limiter has been raised to 7700 rpm. This can be adjusted upon request.
  • The boost cut has been removed.
  • Tuned to run up to 15 psi.
  • Tuned to approximately 280bhp.
  • Improved fuel economy when cruising.
  • Able to be re-mapped using many popular software applications.

Supported ECUs:

  • 23710-82FXX
This daughterboard has been tuned for a stock to mildly car. Ideally you will have:
  • Upgraded fuel pump.
  • Free flowing exhaust (Cat-Back is fine).
  • Free flowing intake system.
  • Boost controller capable of 15 psi (an external wastegate will work fine).

What to expect:

  • Increase in mid-range performance.
  • Removed Flat-Spot that comes from fitting a front mounted intercooler.

What’s included:

  • Performance tuned daughterboard.
  • Ribbon cable to connect to the ECU.
  • Screws to mount the daughterboard inside the ECU.


  • Soldering and desoldering is required for installation.

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