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Challenger · Sound

Challenger Cat-back exhaust

Your Challenger

Pick your year to see what fits.

This page covers the 2008–2023 Challenger.

+3–10 whp (est.)
Medium$700–$1,5002–4 hrs
All Challenger mods

Why do it

Replaces everything behind the cats for the sound these cars should have.

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. Swap the exhaust

    • Lift the car, remove the factory system, hang the new pipes and tighten the clamps from front to back.
    Watch this step (AmericanMuscle, MBRP on a 3.6L) (4:04–29:14)

  2. Remove the stock exhaust

    • Soak the bolts, undo the clamps and slide it off its hangers.
    Watch this step (CARiD, Flowmaster on a 2009 SE V6) (1:11–2:23)

  3. Prepare the new exhaust

    • Lay it out and set up the clamps.
    Watch this step (2:23–3:42)

  4. Install the new system

    • Hang the pipes and tighten the clamps.
    Watch this step (3:42–4:45)

  5. Adjust

    • Line up the tips and check nothing touches.
    Watch this step (4:45–5:47)

  6. Cut the old system

    • Check the stock exhaust, then cut it if your kit calls for it.
    Watch this step (on a 2010 SRT8) (0:40–3:06)

  7. Remove the hangers

    • Slide the pipes off their rubber hangers.
    Watch this step (3:06–4:22)

  8. Finish removing it

    • Take the rest of the old system out.
    Watch this step (4:22–5:42)

  9. Fit the adapters

    • Fit any adapters your kit includes.
    Watch this step (5:42–8:00)

  10. Install the new system

    • Hang the new pipes.
    Watch this step (8:00–9:45)

  11. Align and tighten

    • Line up the tips and tighten everything.
    Watch this step (9:45–11:39)

  12. Remove the stock exhaust

    • Soak the bolts, undo the clamps and slide it off its hangers.
    Watch this step (AmericanMuscle, SLP on a 5.7L) (2:44–6:49)

  13. Prepare the new parts

    • Lay the new system out and fit the gaskets.
    Watch this step (10:06–12:26)

  14. Install the new exhaust

    • Hang the pipes and tighten the clamps from front to back.
    Watch this step (12:26–17:31)

  15. Remove the stock exhaust

    • Soak the bolts, undo the clamps and slide it off its hangers.
    Watch this step (MBRP on a 2021 Scat Pack; the same steps for the R/T) (2:28–8:29)

  16. Prepare the new exhaust

    • Lay it out and set up the clamps.
    Watch this step (8:29–13:50)

  17. Install the new parts

    • Hang the new pipes.
    Watch this step (13:50–20:07)

  18. Final assembly

    • Line up the tips and tighten everything.
    Watch this step (20:07–25:59)

  19. Remove the stock exhaust

    • Soak the bolts, undo the clamps and slide it off its hangers.
    Watch this step (on a Hellcat, Flowmaster kit) (2:45–5:20)

  20. Prepare the new system

    • Lay it out and set up the clamps.
    Watch this step (5:20–7:26)

  21. Fit the exhaust valves

    • Move the valves over.
    Watch this step (7:26–11:04)

  22. Finish the install

    • Hang the system and tighten everything.
    Watch this step (11:04–13:13)

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.