R1 Performance Package | W203 | C 55 AMG | 385 HP / 400 LB-FT | 5.5L NA V8 | M113 mercedes-benz-slc-class--172---2016-present--slc-43-amg-esr5326223 What is included in the

What is included in the R3+ package:

679 wtq @ 4

Rated by RENNtech:                400 HP @ 5

CLASS S (W 220) 55 AMG V8 [2 Filters Required] (HP: 360 | Year: 99 > 02)

our rear diffuser is manufactured using the high quality prepreg carbon fiber and is a quick and easy install that requires no modifications to the SLS’s rear bumper or underbody

R1 Performance Package | W203 | C 55 AMG | 385 HP / 400 LB-FT | 5.5L NA V8 | M113 mercedes-benz-slc-class--172---2016-present--slc-43-amg-esr5326223 What is included in theR1 Performance Package for 203 C 55 AMG. Includes ECU Upgrade and Carbon Fiber Air Box. Up to 385HP and 400LB 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