RENNtech ECU Upgrade | C207 | E 550 Coupé 2014+ | 540HP / 705 LB-FT | 4.7L V8 BiTurbo | M278 | MY2014-2017 audi-s8--d4---2012-2018--4-0l-v8-esr7501940 Mercedes-AMG 43 | M276 |

SKU: 43518827807

4.9

USD1240.00 USD1276.00

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Description

Mercedes-AMG 43 | M276 | 3

CLASS E (W 211) 350 V6 [2 Filters Required] (HP: 272 | Year: 05 > 06)

up to + 12 HP

GL550 (X166 | MY2013-16 | 4MATIC | M278 | 4

consistent sound

RENNtech ECU Upgrade | C207 | E 550 Coupé 2014+ | 540HP / 705 LB-FT | 4.7L V8 BiTurbo | M278 | MY2014-2017 audi-s8--d4---2012-2018--4-0l-v8-esr7501940 Mercedes-AMG 43 | M276 |RENNtech ECU Upgrade for 207 E 550 BiTurbo 2014+ FaceLift. Up to 540HP and 705 LB FT. RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal! Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few

Exchange/Return Notes