ETS Catback Exhaust System

ETS's 2022+ WRX cat-back uses 3-inch T304 stainless tubing throughout, including dual 3-inch pipes after the rear split, and terminates in four 3.5-inch tips. This manufacturer-level catalog record covers both requested sound configurations: Extreme deletes the rear mufflers, while the current Muffled option corresponds to the quieter configuration historically called Quiet. Either version can be ordered with or without a resonator and with polished, blue, or stealth-black tips. V-band connections join the exhaust sections, while a two-bolt flange connects at the factory downpipe. The complete cat-back alone does not require ECU calibration.