Havok Engineering - Spec 1 R33 Skyline GTR RB26DETT ECU Upgrade Chip - 1 Bar! ECU Number:23710-05U62 3) Great after sales support

3) Great after sales support

Instructions are included

This product uses a JDM base map

Tuned to run approximately 300 hp

Havok Engineering - Spec 1 R33 Skyline GTR RB26DETT ECU Upgrade Chip - 1 Bar! ECU Number:23710-05U62 3) Great after sales supportThe Real Deal The Real Deal Havok Engineering tuned ECU upgrade for the Nissan R33 Skyline GTR, fitted with an RB26DETT. Designed to fit in an R32 GTR ECU, these replace the stock chip with performance settings tuned for the R33. Features: Performance tuned fuel and ignition maps. Tuned to run at 14 15 psi. The 180 km h speed cut has been removed. The rev limiter has been raised to 8500 rpm. This can be adjusted upon request. The boost cut has been