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The Real Deal - Havok Engineering tuned daughterboard upgrade for the Nissan S14 (Pre-Facelift / Zenki) Silvia with an SR20DET engine
Boost controller capable of 18 psi (an external wastegate will work fine)
We also do these for the Evolution 4
We also do these for the "Steel Case" and 5 Speed ECUs
Supported ECUs:
Havok Engineering - R33 RB25DET ECU Upgrade Chip - FOR THE R33 ECU!! 7 The Real Deal - HavokThe Real Deal Havok Engineering tuned MCU upgrade for the Nissan Skyline R33 GTSt with an RB25DET. Designed to fit in the factory ECU, these replace the stock chip with performance settings. These are available in Automatic or Manual, and Series 1 or 2. The major problem with the R33 Skyline's ECU is its inability to handle modifications to the motor. The ECU easily revertes to "Rich and Retard" (R&R) mode, killing power, and efficiency. Features: