RENNtech ECU Upgrade for C 350 | W203 | 290 HP / 278 LB-FT | MY2006-2007 mercedes-benz-s-class--222---2018-2020--s-65-amg-esr3393684

RENNtech ECU Upgrade for C 350 | W203 | 290 HP / 278 LB-FT | MY2006-2007 mercedes-benz-s-class--222---2018-2020--s-65-amg-esr3393684RENNtech ECU Upgrade for 203 C 350, up to 290HP, 278LB FT. Gains: +22HP & 20LB 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 for

CLASS E (W 212) 550 4-matic [2 Filters Required] (HP: 408 | Year: 11 > )

Thanks to the dual-mode exhaust flap system

and RSQ8 gains up to +80 HP and 144 LB-FT

Our performance and sound pipes bypass the stock Mercedes resonators for increased exhaust gas flow

The RENNtech transmission upgrade is complete transmission software upgrade and has to be done at the RENNtech HQ in Stuart

354 LB-FT @ 1

773 HP +92 HP 778 LB-FT +42 LB-FT W/S 213 - AMG E63 R1 Package 793 HP +112 HP 788 LB-FT +52 LB-FT W/S 213 - AMG E63 R2 Package 803 HP +122 HP 818 LB-FT +82 LB-FT W/S 213 - AMG E63 R3 Package 875 HP +194 HP 871 LB-FT +135 LB-FT W/S 213 - AMG E63 R3+ Package 1

336 LB-FT @ 2700-4000 RPM

designed in-house by RENNtech and manufactured in the USA

CLASS S LONG (W 221) 351 V6 4-Matic Blue Efficiency (HP: 306 | Year: 11 > )

main mufflers

2018-2021 Maybach C217 S560