2006-2011 Honda Civic 1.8L and Civic Hybrid 1.3L Muffler Guide
Reviewed 2026-10-03. Checked against the sources listed below. This is general information, not a substitute for a mechanic's inspection.
Quick answer
The AFECO 54668 rear muffler fits the 2006-2011 Honda Civic 1.8L 4-door sedan and the 2006-2011 Civic Hybrid 1.3L. It does not fit the 2-door Civic coupe, which uses a different factory muffler. It is made from 304 stainless steel and comes with mounting hardware.
Exact fit
| Years | Make | Model | Engine | Drive |
|---|---|---|---|---|
| 2006-2011 | Honda | Civic 4-door sedan | 1.8L 4-cylinder | Front-wheel drive |
| 2006-2011 | Honda | Civic Hybrid | 1.3L 4-cylinder | Front-wheel drive |
Sedan or coupe matters. Honda's sedan and Hybrid muffler is 18307-SNE-A11 (Japan-built sedans use 18307-SNA-A01), and Honda lists it for 4-door Civics only. The coupe uses 18307-SVA-A03, a different part. The AFECO 54668 replaces the sedan and Hybrid numbers.
Check before ordering: Civics with the 2.0L engine (the Civic Si) are not on this list. Enter your VIN in the free NHTSA VIN decoder and confirm Displacement (L) shows 1.8 (or 1.3 for the Hybrid), and that the body is a 4-door.
AFECO vs the factory part
The factory part is Honda 18307-SNE-A11 (details checked October 24, 2026).
| Option | Material | In the box | Warranty |
|---|---|---|---|
| AFECO 54668 | 304 stainless steel | Mounting hardware included | 6 months / 5,000 miles |
| Genuine Honda 18307-SNE-A11 | Not stated | Not stated | Honda factory warranty |
- Stainless with the hardware in the box: the AFECO 54668 is 304 stainless, comes with mounting hardware and is delivered by Amazon.
- Factory part: the genuine Honda muffler costs much more than an aftermarket replacement.
- Coupe owners: this muffler does not fit. The coupe uses Honda 18307-SVA-A03.
- Civic Si (2.0L): not covered here; it uses a different muffler.
Signs the muffler is failing
| What you notice | Likely cause |
|---|---|
| Louder exhaust, raspy or deeper tone | Rust hole or split seam |
| Rattle at the back at idle or over bumps | Broken inner wall, or a loose heat shield or hanger |
| Visible rust, flaking or a hole | Corrosion through the shell |
| Exhaust smell near the trunk | A leak at the back |
Why 304 stainless helps here
Civics are often used for commuting and short trips. On short drives, water from combustion never fully boils off and sits in the muffler. 304 stainless has much more chromium and nickel than 409, so it resists that kind of corrosion better and keeps a brighter finish. A magnet sticks only weakly or not at all to most 304, which is an easy way to tell grades apart.
Is there a recall?
We checked NHTSA's recall database for the 2006-2011 Civic. None of the safety recalls listed involve the exhaust system. Check your own VIN at nhtsa.gov/recalls for the current answer.
Before you buy
- Rule out a loose hanger or heat shield if the only symptom is a rattle.
- Check the pipe ahead of the muffler for rust. If it is weak, repair it at the same time.
- Confirm your engine size and that your Civic is a 4-door sedan or Hybrid.
Fitting notes
The AFECO 54668 is direct-fit and includes hardware. Soak the old joint with penetrating oil, use the new hardware, and check that the tailpipe is centred in the bumper cut-out before final tightening.
