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S5 Cat-back exhaust

Your S5

Pick your year to see what fits.

This page covers US S5s only. The S4 has its own page.

+3–10 whp (est.)
Medium$1,300–$2,1602–4 hrs
All S5 mods

Why do it

A better sound and a little less weight.

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 old exhaust

    • Undo the clamps and slide it off its hangers.
    Watch this step (AWE on a B8.5 S5) (1:34–2:27)

  2. Fit the new system

    • Hang the new pipes.
    Watch this step (2:27–3:40)

  3. Finish the install

    • Tighten the clamps and line it up.
    Watch this step (3:40–4:37)

  4. Fit the tips

    • Fit the tips and even them up.
    Watch this step (4:37–5:20)

  5. Swap the exhaust

    • Undo the clamps, take off the stock exhaust and hang the new one.
    Watch this step (AWE on a B9 S5) (2:23–5:46)

  6. Finish the install

    • Line up the tips and tighten everything.
    Watch this step (5:46–7:59)

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.