R2 Performance Package | W211 | E 55K | 588 HP / 616 LB-FT | 5.5L Supercharged V8 | M113 mercedes-benz-e-class-wagon--212---2010-2013--e63-amg-biturbo-esr7224727 With the replacement of the

With the replacement of the stock downpipes we improve performance

Performance package R1 includes our proprietary ECU tune and crankshaft pulley in addition to our higher efficiency intercooler pump for increased

RENNtech stainless steel (SS) sport mufflers are hand made and rigorously tested to remove any unwanted resonances in the cabin to deliver a deep sound that keeps with the character of a luxury performance vehicle

RENNtech height adjustable spring perches for front and rear

but won’t crack

R2 Performance Package | W211 | E 55K | 588 HP / 616 LB-FT | 5.5L Supercharged V8 | M113 mercedes-benz-e-class-wagon--212---2010-2013--e63-amg-biturbo-esr7224727 With the replacement of theR2 Performance Package for 211 E 55 AMG Kompressor. Includes ECU Upgrade Crankshaft Pulley and Upgraded Intercooler Pump. Up to 588HP and 616LB FT. Gains: +119HP & +100LB FT Performance package R2 takes performance to the next level and is a step up from our R1 tuning package. The R2 performance package includes the same components found in our R1 package with the addition of a full carbon fiber airbox, RENNtech stainless steel exhaust headers, 82 mm