Performance Chips and Electrical Upgrades

DA4433 - Power Box Plug In - By PSI - For Defender and Discovery TD5

DA4436 - Power Box Plug In - By PSI - For Defender Puma 2.4 Engine

DA4507 - Tuning Box For Defender Puma 2.2 TDci

DA4667 - Turbo Boost Box - For Discovery TD5 and Defender TD5