Havok Engineering Nissan S14A SR20DET Stage 1A ECU Upgrade Board RB25DET - Turn coil packs on

- Turn coil packs on and off to diagnose a miss-fire

23710-10U11

and has been set at 5300 rpm

This is the limit of the turbo

Havok Engineering Nissan S14A SR20DET Stage 1A ECU Upgrade Board RB25DET - Turn coil packs onThe 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. Features: 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