R1 Performance Package | R171 | SLK 55 AMG | 385 HP / 400 LB-FT | 5.5L NA V8 | M113 mercedes-benz-e-class-sedan--210---1996-2002--e-320-esr2744801 development and exhaustive testing ensure

development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability

RENNtech brake lines increase braking efficiency and remove the spongy feel under arduous conditions

RPM Tuned: 504 HP | 507 LB FT

An optional camera housing extension (Part # Aero:88

Fit and finish meets OEM Mercedes-Benz quality standards thanks to the parts 100% pre-preg carbon fiber construction

R1 Performance Package | R171 | SLK 55 AMG | 385 HP / 400 LB-FT | 5.5L NA V8 | M113 mercedes-benz-e-class-sedan--210---1996-2002--e-320-esr2744801 development and exhaustive testing ensureR1 Performance Package for 171 SLK 55 AMG. Includes ECU Upgrade and Carbon Fiber Air Box. Up to 385HP and 400 LB FT. Gains: +30HP & +24LB 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