Cat-Back Exhaust System

The ETS Cat Back Exhaust System is engineered for the 2015-2021 Subaru WRX and STI, offering a significant upgrade in exhaust flow and sound. This system features a 3.0-inch diameter all the way through the mid-pipe, which then splits into dual 3-inch pipes. The rear section is capped off with aggressive quad 3.5-inch double-wall stainless steel tips, available in Polished SS, Blue, or Stealth Black finishes. Constructed with performance in mind, the ETS system employs V-band connections for all joints except the factory 2-bolt connection. This design ensures a leak-proof seal, eliminating the need for gaskets that can fail over time. The system is offered with or without mufflers, and with or without a resonator, allowing for customization of the sound profile. Installation is facilitated by the included gasket and clamps, along with necessary hardware. The exhaust system is backed by a manufacturer standard warranty. Please note: California residents should be aware of the Prop 65 Warning associated with this product.