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ECU Performance-Tuned Upgrades

These are preset, off the shelf ECU upgrade tunes designed for specific setups.
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Havok Engineering - R33 RB25DET ECU Upgrade Chip - FOR THE R33 ECU!!

Havok Engineering - R33 RB25DET ECU Upgrade Chip - FOR THE R33 ECU!!

$22900
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Havok Engineering - Stage 2 R33 RB25DET ECU Upgrade Chip - FOR THE R33 ECU!!

Havok Engineering - Stage 2 R33 RB25DET ECU Upgrade Chip - FOR THE R33 ECU!!

$22900