If you are looking for a more aggresive tone for your Evolution X, but do not want to spend the extra on a full catback exhaust, Injen has the product for you. This item replaces your stock muffler section with a high flow unit from Injen. It features 76mm piping and is a direct bolt on to your stock midpipe. It will provide a sporty yet aggresive tone and will not be overly loud. It is constructed of full stainless steel and includes everything needed to bolt it on.