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It is not a plug and play install
23710-11U70
This is a true "plug and play" installation
it is now boosting perfectly up to 14psi (using the solenoid) but not only that I had a fairly bad stumbling issue down at 2k rpm when I really got on it and that is ALL gone now
The speed sensor wire must be intact for the launch control to work
Havok Engineering Nissan S14 SR20DET Stage 1A ECU Upgrade Board EVO It is not a plugThe Real Deal Havok Engineering tuned daughterboard upgrade for the Nissan S14A (Pre Facelift Zenki) 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. Features: Performance tuned fuel and ignition maps The 180 km h speed cut has been removed. The rev limiter has been raised to 7500 rpm. This can be adjusted upon request. The boost cut has