GLK - 204 (2010-present)
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RENNtech ECU Upgrade for GLK 350 (X204- 290 HP / 278 TQ)
RENNtech ECU Upgrade for 204 - GLK 350. Up to 290HP and 278TQ. Gains: +22HP & 20TQ -
RENNtech | ECU Upgrade | X204 | GLK 350 BlueEFFICIENCY | 308HP/285TQ | 3.5L V6 NaturallyAspirated | M276
RENNtech ECU Upgrade for 204 - GLK 350 Blue Efficiency. Up to 308HP and 285TQ. Gains: +6HP & 12TQ