R1 Performance Package | W220 | S 55 AMG | 372 HP / 411 LB-FT | 5.5L NA V8 | M113 porsche-911--991-1---2011-2016--gt3-rs-esr2317826 up to + 12 LB-FT

up to + 12 LB-FT

throttle mapping

our 100% locking limited slip differential to improve handling and traction in addition to our transmission performance upgrade

Mercedes-Benz SL R232

which make these Ingolstadt machines even more attractive on all fronts

R1 Performance Package | W220 | S 55 AMG | 372 HP / 411 LB-FT | 5.5L NA V8 | M113 porsche-911--991-1---2011-2016--gt3-rs-esr2317826 up to + 12 LB-FTR1 Performance Package for 220 S 55 AMG. Includes ECU Upgrade and Carbon Fiber Air Box. Up to 372HP and 411 LB FT. The R1 performance package for the Mercedes 55 series engine includes our proprietary ECU upgrade in addition to our full carbon fiber airbox upgrade which offers a larger volume of incoming air for better engine breathing and improved cylinder filling. This combination that provides noticeable increases horsepower, torque and throttle