RENNtech ECU Hand Held Tuner | HHT | W211 | E55 AMG Kompressor | 517HP/552LB-FT | 5.5L Kompressor | M113 | MY2003-2006 mercedes-benz-s-class--223---2021-present--s-500-esr4433616 Akrapovic Evolution Line (Titanium) for

Akrapovic Evolution Line (Titanium) for Porsche Cayenne Turbo S (985)

up to an astonishing 392 HP and 462 lb/ft at the crank

Available in black or chrome

Due to increased power and boost levels

RENNtech ECU Hand Held Tuner | HHT | W211 | E55 AMG Kompressor | 517HP/552LB-FT | 5.5L Kompressor | M113 | MY2003-2006 mercedes-benz-s-class--223---2021-present--s-500-esr4433616 Akrapovic Evolution Line (Titanium) forRENNtech ECU HHT (HandHeldTuner) for the 211 E55 AMG Kompressor. Up to 517HP and 552LB FT. Gains: +48HP & +36TQ. 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.