RENNtech ECU Upgrade for C 320 (W204- 253 HP / 464 LB-FT) maybach-57-s---62-s--w240---2005-2012--6-0-l-v12-biturbo-esr7789155 SLK (R 171) 280 V6

SLK (R 171) 280 V6 [2 Filters Required] (HP: 231 | Year: 05 > 09)

8 at 3460 rpm + 6

accurate pointer movements

For example

):                               329 HP @ 5

RENNtech ECU Upgrade for C 320 (W204- 253 HP / 464 LB-FT) maybach-57-s---62-s--w240---2005-2012--6-0-l-v12-biturbo-esr7789155 SLK (R 171) 280 V6RENNtech ECU Upgrade for 203 C 320 CDI. up to 253HP, 464LB FT. Gains: +23HP & 75LB FT RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability. RENNtech tuning software