EGR Valve 911-242 compatible for Jeep 2011-07 compatible for Volkswagen 2007 2008 2009 2010Description In a nutshell, the EGR is there to reduce emissions. It does this by rerouting some of the exhaust gases coming from the engine back into the combustion chambers in the engine. When the air fuel mixture in an engine is burnt at a very high temperature, greenhouse gases such as nitrous oxide tend to be produced. Maxpeedingrods provide multiple EGR for your cars and other performance auto parts, tuning car parts at affordable prices online.