Mercedes GL 166 – GL 450 BiTurbo
RENNtech ECU Upgrade GL 450 (X166- 501 HP / 576 TQ for M278 Biturbo)
RENNtech ECU Upgrade for 166 – GL 450 BiTurbo. Up to 501HP and 576TQ. Gains: +139HP & +170TQ
RENNtech ECU Upgrade for 166 – GL 450 BiTurbo. Up to 501HP and 576TQ. Gains: +139HP & +170TQ