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Civic Cat-back exhaust

Your Civic

Pick your year to see what fits.

This page covers the US Civic, 1992 on.

+3–10 whp (est.)
Medium$500–$2,5951–3 hrs
All Civic mods

Why do it

Lets the engine breathe better and sound better.

Tools you'll need

Starting out? See our budget tool list.

Parts to buy

Double-check fitment before buying. We may earn a commission when you buy through these links, at no extra cost to you.

Steps

  1. Remove the mid pipe

    • Undo the mid pipe and take it off.
    Watch this step (Full Race on an 8th gen Si) (2:06–3:08)

  2. Fit the new system

    • Hang the new pipes.
    Watch this step (8:28–10:21)

  3. Finish

    • Line it up and tighten everything.
    Watch this step (10:21–11:25)

  4. Remove the old exhaust

    • Undo the bolts and pull it off.
    Watch this step (Ktuned on a 9th gen) (1:53–4:19)

  5. Fit the new exhaust

    • Hang it and tighten everything.
    Watch this step (7:12–10:01)

  6. Remove the stock exhaust

    • Undo it and take it off.
    Watch this step (Invidia on a 10th gen) (0:39–1:54)

  7. Unbolt the other side

    • Undo the driver side.
    Watch this step (1:54–3:15)

  8. Fit the new pipes

    • Hang the new pipes.
    Watch this step (3:15–5:06)

  9. Fit the tail end

    • Fit the tail and tighten everything.
    Watch this step (5:06–6:14)

  10. Remove the stock exhaust

    • Undo it and take it off.
    Watch this step (Invidia on a 10th gen) (0:39–1:54)

  11. Unbolt the other side

    • Undo the driver side.
    Watch this step (1:54–3:15)

  12. Fit the new pipes

    • Hang the new pipes.
    Watch this step (3:15–5:06)

  13. Fit the tail end

    • Fit the tail and tighten everything.
    Watch this step (5:06–6:14)

  14. Fit the front pipe

    • Take off the stock exhaust and fit the front pipe.
    Watch this step (AWE on an FK8) (0:56–3:37)

  15. Fit the resonator

    • Fit the resonator.
    Watch this step (3:37–4:15)

  16. Fit the mid section

    • Fit the mid section.
    Watch this step (4:15–4:30)

  17. Fit the axle-back

    • Fit the rear section.
    Watch this step (4:30–5:43)

  18. Fit the tips

    • Fit the tips.
    Watch this step (5:43–6:21)

  19. Tighten everything

    • Line it up and tighten everything.
    Watch this step (6:50–9:49)

  20. Remove the factory parts

    • Take off the stock exhaust.
    Watch this step (PRL N1 on a 2.0L Sport) (1:28–2:53)

  21. Fit the new system

    • Hang it.
    Watch this step (2:53–3:59)

  22. Finish

    • Line it up and tighten everything.
    Watch this step (3:59–5:02)

  23. Remove the stock exhaust

    • Take it off.
    Watch this step (Remark on a 2022 Si) (0:41–2:48)

  24. Install the new exhaust

    • Hang it and tighten everything.
    Watch this step (2:48–4:37)

How to know it worked

Did this guide work for you?

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.