Xforce is a leading choice for Subaru performance exhaust systems in the USA, bringing over 25 years of Australian exhaust engineering and development experience to Subaru enthusiasts across America. From the iconic Subaru Impreza WRX and WRX STI to the VA (2015-2021) and VB (2022+) WRX models, Xforce offers an extensive range of performance exhaust upgrades engineered to deliver the aggressive sound, performance, and quality Subaru enthusiasts demand.

Leading our range is the popular VAREX WR Valved cat-back exhaust system for the VA and VB Subaru WRX, engineered and proven to deliver one of the loudest, most aggressive exhaust notes available for the VB WRX when fully open, while giving you the freedom to close the valves for quieter everyday driving, keep the cold start under control and make your neighbors happy.
 Choose from premium 304 stainless steel cat-back exhaust systems, with multiple pipe configurations, sound levels and exhaust tip options for selected models. Our patented VAREX valved exhaust technology puts you in control of your Subaru’s exhaust sound, and the VAREX Smartbox takes customization even further with advanced valve control via your smartphone. Imagine being able to preset quiet Geo-zones to keep your WRX quiet where you need it automatically! That’s just one feature of Smartbox.