Home / Parts & Accessories / Shop by Model / Land Rover 90/110/Defender / Electrics / Engine Electrics / Tuning Tuning Sort: Most popularWhat's newPrice low to highPrice high to lowName A to ZName Z to A 2 Products Sort PSI Power Tuning Box - TD5 £414.25 Defender TD5 Discovery TD5 PSI Power Tuning Box - TD5 £414.25 Defender TD5 Discovery TD5 View Product PSI Power Tuning Box - 2.4Tdci £464.85 Defender - 2.4Tdci - 2007 - 2011 PSI Power Tuning Box - 2.4Tdci £464.85 Defender - 2.4Tdci - 2007 - 2011 View Product