Do-it-yourself tuning: RENNtech Auto Tuner
By Andrew C., 30 Aug, 2010. 0 Comments
From RENNtech comes a new plug and play ECU upgrade module dubbed the RAT (RENNtech Auto Tuner). This module connects directly to the ECU via the OBD II port, making installation a simple one-step process by eliminating the need to remove or bypass the stock ECU.
Preprogrammed on the RAT is a variety of RENNtech software designed for the ME2.7.1 and ME2.8.1 ECUs used on the Mercedes-Benz E55 AMG and 2006 or earlier, Mercedes-Benz V12 turbos. As soon as the RAT is attached to the OBD II port, it decides which software to use for that particular vehicle. If the owner finds the RENNtech performance too aggressive for daily use, they can simply hit a switch on the RAT and revert back to a stock setup. Other unique features include an ECU backup (incase of an interruption during programming) and the availability of custom tuning software for owners willing to use 100-octane fuel. Photo gallery after the jump!
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