RENNtech ECU Upgrade S 600 (W221- 625 HP / 745 LB-FT) porsche-panamera--970---2011-2015--panamera-4-esr6932067 Please note: This is for

Please note: This is for the sedan version of the E class only

R1 Performance Package for 221 - S 550

standout aerodynamic package

Blow Off Valves: Designed as a quick bolt-in solution which are intended to release excessive pressure in high boost occasions

RENNtech ECU Upgrade S 600 (W221- 625 HP / 745 LB-FT) porsche-panamera--970---2011-2015--panamera-4-esr6932067 Please note: This is forRENNtech ECU Upgrade for 221 S 600. Up to 625 HP and 745 LB FT. Gains: +115 HP & +133 LB 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