Subaru WRX VB Catback: Resonated vs Non-Resonated
By REMARK Exhaust | Published: 2026-10-20
Category: Comparisons
Compare resonated and non-resonated catback exhausts for the Subaru WRX VB. Learn which reduces drone, which sounds louder, and how to choose based on your driving style.
Quick answer
For a Subaru WRX VB, choose a resonated catback if you want a deep, mature tone without the highway drone; pick non-resonated if you want maximum volume and don't mind extra cabin noise.
Why the resonator matters on the FA24F
The 2.4L FA24F turbocharged WRX (VB) has a naturally loud and slightly raspy exhaust note. A resonator is a tuned chamber on the midpipe that cancels specific sound frequencies. On the VB chassis, adding a 19-inch resonator shifts the tone from sharp to deep and drops the overall volume, which makes daily driving more comfortable without removing the performance character.
The trade-off is straightforward: a resonated catback is quieter and smoother, while a non-resonated system is louder and more aggressive. If your priority is a mature, subtle note that doesn't attract attention in every gear, the resonated route is the safer choice. If you want maximum volume and the rawest sound the 2.4L FA24F can produce, skip the resonator.
Diagnose Your Sound Goal
- Symptom: You hear a loud, droning exhaust note on the highway, or the tone feels too aggressive for daily driving.
- Likely cause: A non-resonated catback leaves the midpipe straight, so the 2.4L FA24F's exhaust pulses travel farther before being absorbed. This raises interior boom at cruising RPM. If you mainly commute or take long trips, the resonator is the safer starting point.
- Corrective action: Choose the Sports Touring Exhaust with the 19" resonator for a deeper, quieter note that reduces drone. If you already own a non-resonated system and want to cut volume, replacing the midpipe with a resonated section is the practical fix rather than changing the whole catback. Confirm the resonator length and pipe diameter match your existing system before buying a midpipe-only swap.
- Stop and choose another option: If you want the loudest possible output and do not mind highway drone, pick a non-resonated catback. If you want a mature, subtle tone and minimal interior resonance, stop at the resonated version and skip resonator-delete modifications. Decide on sound volume before ordering; the resonator cannot be added later without replacing the midpipe.
Product facts
- Sports Touring Exhaust w/ Resonator (4" Catback) - Subaru Impreza WRX (VB) 2022+: The Sports Touring Exhaust w/ Resonator is the flagship catback for the Subaru WRX (VB) 2022+, designed for the 2.4L FA24F turbo engine and includes a 19" long resonator on the midpipe. The resonator reduces overall volume and tames the tone, so you get a deeper, mature note without the drone that often bothers daily drivers.
Sports Touring Exhaust w/ Resonator (4" Catback) - Subaru Impreza WRX (VB) 2022+
