RENNtech ECU Hand Held Tuner (HHT) for S 55 AMG | W220 | 370 HP / 410 LB-FT | MY2001-2002 mercedes-benz-sl-class--232---2022-present--sl-55-amg-biturbo-esr7979792 Rated by Mercedes-Benz: 518 HP

SKU: 47208388803

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RENNtech ECU Hand Held Tuner (HHT) for S 55 AMG | W220 | 370 HP / 410 LB-FT | MY2001-2002 mercedes-benz-sl-class--232---2022-present--sl-55-amg-biturbo-esr7979792 Rated by Mercedes-Benz: 518 HPRENNtech ECU HHT (HandHeldTuner) for the 220 S 55 AMG. Up to 370HP and 410 LB FT. Gains: +16HP & +19 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.

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