1999-2013 Mercedes S-Class / 1998-2010 Mercedes SLK-Class X-Pedal Pro Black Edition Throttle Controller (INJPT0019B)Description X Pedal Pro Black Edition throttle response controller for 1999 2013 Mercedes S Class and 1998 2010 Mercedes SLK Class. This plug in module tunes out factory throttle lag and lets you adjust pedal feel on the fly, installing in under five minutes for an immediate change in driving feel. Features Eliminates factory throttle response delay Adjustable pedal feel on the fly Plug in module installs in under 5 minutes Works with the stock ECU