XFORCE is an Australian exhaust manufacture that focuses strongly on research and development which ensures a diverse range of exhaust products are of powerful engineering precision, stylish and practically designed to maximize performance and most importantly, technically innovative such as the patented VAREX™ Muffler application which in itself, is an exhaust revolution. XFORCE exhaust systems are specially designed and dyno tested on a state-of-the-art Dynapack Evolution 3000 chassis dynamometer machine, for proven performance!