Havok Engineering - R33 RB25DET ECU Upgrade Chip - FOR THE R33 ECU!!
Havok Engineering - Spec 1 R32 Skyline GTR RB26DETT ECU Upgrade Chip - 1 Bar!
Havok Engineering - Spec 1 R32 Skyline RB20DET ECU Upgrade Chip - 1 Bar!
Havok Engineering - Spec 1 R33 Skyline GTR RB26DETT ECU Upgrade Chip - 1 Bar!
Havok Engineering - Spec 2A R32 Skyline RB20DET ECU Upgrade Chip - RB25DET Turbo!
Havok Engineering - Spec 2B R32 Skyline RB20DET ECU Upgrade Chip - T3/T4 Turbo!
Havok Engineering - Stage 2 R33 RB25DET ECU Upgrade Chip - FOR THE R33 ECU!!
Havok Engineering 1996 - 1997 Mitsubishi Galant / Legnum VR-4 ECU Upgrade Chip
Havok Engineering 91-93 (Facelift) Subaru Legacy / Liberty GT or RS ECU Upgrade Chip - 16 PSI
Havok Engineering 91-93 (Facelift) Subaru Legacy / Liberty GT or RS ECU Upgrade Chip with Launch Control - 16 PSI
Havok Engineering ER34 GTT RB25DET NEO Pre-Tuned Daughterboard - Stage 1
Havok Engineering Nissan S13 SR20DET (Red Top) Stage 1 ECU Upgrade Board
Havok Engineering Nissan S14 SR20DET Stage 1A ECU Upgrade Board
Havok Engineering Nissan S14 SR20DET Stage 1B ECU Upgrade Board
Havok Engineering Nissan S14 SR20DET Stage 2A ECU Upgrade Board
Havok Engineering Nissan S14 SR20DET Stage 2B ECU Upgrade Board
Havok Engineering Nissan S14 SR20DET Stage 3A ECU Upgrade Board
Havok Engineering Nissan S14 SR20DET Stage 3B ECU Upgrade Board
Havok Engineering Nissan S14A SR20DET Stage 1A ECU Upgrade Board
Havok Engineering Nissan S15 SR20DET Stage 1A ECU Upgrade Board
