This Invidia Racing Catback Exhaust for the 2015+ WRX/STI is constructed
with high-quality SUS304 stainless steel, CNC-machined flanges, and
manufactured with a polished finish. Each system features mandrel-bent
stainless steel piping for maximum exhaust flow and reduced back
pressure. These exhausts are engineered to produce strong mid to top-end
power gains, as well as an increase in horsepower and torque for your
2015 Subaru WRX/STI.