Home › Subaru Impreza › Cat-back exhaust
Impreza · Sound
Impreza Cat-back exhaust
Your Impreza
Pick your year to see what fits.
This page covers the non-turbo Impreza, including the 2.5RS, Outback Sport and RS. The WRX and STI get their own page.
+2–6 whp (est.)
Medium$450–$8001–2 hrs
Why do it
A deeper boxer rumble and a little more flow than the quiet stock exhaust, in stainless steel that won't rust out.
Tools you'll need
- Jack and jack stands (or ramps)
- 14mm socket and wrench
- Penetrating oil
- Spray lube or soapy water
- Pry bar or hanger removal tool
- Jack and jack stands (or ramps)
- 14mm socket and wrench
- Penetrating oil
- Spray lube or soapy water
- Pry bar or hanger removal tool
- Jack and jack stands (or ramps)
- 14mm socket and wrench
- Penetrating oil
- Spray lube or soapy water
- Pry bar or hanger removal tool
Parts to buy
- Nameless Performance axleback, 5" muffler, turndown (2012–2016 hatchback) Stainless, bolts to the factory midpipe, hardware and gasket included. The same exhaust as our video.Fits 2012–2016 · wagon only · 2.0L
- Nameless Performance quad exit axleback, 5" mufflers (2017–2023 hatchback) Four tips that fill the bumper cutouts. Same brand and style as our video.Fits 2017–2023 · wagon only · 2.0L
- Nameless Performance quad exit axleback, Executive 5" muffler (2024+) Their quietest muffler, quad tips. The exact exhaust in our video.Fits 2024–2026 · 2.0L, RS 2.5L
Doesn't fit your car (0)
Double-check fitment before buying.
Before you start
- The Nameless axleback fits 2012–2016 hatchbacks and bolts to the factory midpipe.
- Spray the flange bolts and rubber hangers with penetrating oil the night before.
- The Nameless quad exit axleback fits 2017–2023 hatchbacks and bolts to the factory midpipe.
- Spray the flange bolts and rubber hangers with penetrating oil the night before.
- The Nameless quad exit axleback fits 2024+ Impreza hatchbacks and bolts to the factory midpipe. It's about an hour's job.
Steps
Unbolt the stock axleback
- Raise the rear safely. Undo the two nuts at the flange where the muffler section meets the midpipe.
Pop it off the hangers
- Lube the rubber hangers and lever the stock muffler off them with a pry bar. Support it so it doesn't drop.
Hang the new exhaust
- Fit the new gasket, push the new axleback onto the hangers and start the flange bolts by hand.
Tighten and listen for leaks
- Line the tip up, tighten the flange nuts evenly, then start the car and listen at the joint for any puffing.
Remove the stock axleback
- Raise the rear safely, undo the flange nuts at the midpipe, lube the rubber hangers and pry the stock muffler off them.
Hang the new exhaust
- Fit the new gasket, push the quad-tip section onto the hangers and start the flange bolts by hand.
Center the tips and tighten
- Center all four tips in the bumper cutouts, tighten the flange nuts evenly, then start the car and listen for leaks.
Remove the stock exhaust
- Raise the rear safely, undo the flange nuts at the midpipe, lube the rubber hangers and slide the factory turn-down muffler off.
Hang the quad-tip exhaust
- Fit the new gasket, push the new section onto the hangers and start the flange bolts by hand.
Center the tips and tighten
- Center the four tips in the bumper, tighten the flange nuts evenly, then start the car and listen for leaks.
How to know it worked
- No ticking or puffing at the flange.
- Nothing touches the body or heat shields.
- Tips sit evenly in the bumper.
- No puffing at the flange.
- Tips sit evenly in the bumper.
- No puffing at the flange.
Did this guide work for you?
Fixes from the community:
Suggest a fix
For:
Safety first
- Park on flat ground, set the parking brake and chock the wheels.
- Never get under a car held up only by a jack. Use jack stands.
- Let the engine and exhaust cool first.
- Disconnect the battery before unplugging electrical parts.
- Wear safety glasses.
- If something doesn't match your car, stop and ask a shop.
Follow your part's instructions and your service manual's torque specs.