R1 Performance Package | C215 | CL 55 AMG | 372 HP / 411 LB-FT | 5.5L NA V8 | M113 mercedes-benz-amg-gt--190---2015-2017--gt--2016-2017--esr9621144 SLK (R 171) 280 V6

SLK (R 171) 280 V6 [2 Filters Required] (HP: 231 | Year: 05 > 09)

and larger crankshaft pulley

These exceptionally unique and refined aerodynamic pieces complete the RENNtech SLS aero package by integrating flawlessly with the original lines of the vehicle while boosting the overall testosterone level of the sporty SLS

RENNtech SLS Stainless Steel Valved Sport Exhaust System w/ Programmable Remote Control

R1 Performance Package | C215 | CL 55 AMG | 372 HP / 411 LB-FT | 5.5L NA V8 | M113 mercedes-benz-amg-gt--190---2015-2017--gt--2016-2017--esr9621144 SLK (R 171) 280 V6R1 Performance Package for 215 CL 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