RENNtech ECU Hand Held Tuner | HHT | W463 | G55 AMG Kompressor | 536HP/552LB-FT | 5.5L Kompressor | M113 ferrari-f355--1994-1999--esr4582803 RENNtech replaces original parts with

RENNtech replaces original parts with new components for upgraded function and performance

991 | Speedster

CLASS CLC (C 203) 350 V6 [2 Filters Required] (HP: 272 | Year: 08 > 11)

A45 AMG | MY2019+

RENNtech ECU Hand Held Tuner | HHT | W463 | G55 AMG Kompressor | 536HP/552LB-FT | 5.5L Kompressor | M113 ferrari-f355--1994-1999--esr4582803 RENNtech replaces original parts withRENNtech ECU HHT (HandHeldTuner) for the W463 G55 AMG Kompressor. Up to 536HP and 552LB FT . Gains: +36HP & +36LB 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.