In designing the Pypes Exhaust System High Ground Clearance Catback System - JK, the manufacturers addressed a performance and noise problem that they found with the stock exhaust systems in 2007 to 2017 Jeep JKs. They remedied the situation by developing an improved high ground clearance exhaust system. Of all of the aftermarket exhaust systems available for Jeep JKs, the Pypes Exhaust System High Ground Clearance Catback System - JK has the highest ground clearance.