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E90/E92/E93 · Sound

E90/E92/E93 Exhaust

Your E90/E92/E93

Pick your year to see what fits.

This page covers the US sedan, coupe and convertible. It doesn't cover the 335d diesel or the E91 wagon.

+0–10 whp (est.)
Medium$300–$2,5002–3 hrs
All E90/E92/E93 mods

Why do it

A freer exhaust gives the car more voice and takes some weight off the back.

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 stock exhaust

    • Raise the car, unbolt the hangers and remove the rear of the exhaust.
    Watch this step (Throwout Boyz, Turner on an N52) (5:58–10:40)

  2. Install and test

    • Fit the new axle-back, line up the tips and tighten everything.
    Watch this step (14:43–20:14)

  3. Remove the stock exhaust

    • Raise the car, undo the clamp and the hangers, and lower the exhaust out.
    Watch this step (Speed Theory, VRSF on an E9X 335i) (1:06–3:46)

  4. Install the mid-pipe

    • Fit the mid-pipe to the downpipes loosely.
    Watch this step (3:46–5:53)

  5. Install the rear section

    • Hang the rear section on its mounts.
    Watch this step (5:53–8:43)

  6. Align and tighten

    • Line up the tips, then tighten every clamp.
    Watch this step (8:43–11:19)

  7. Mark and cut the pipes

    • Raise the car, hold the kit up to see where to cut, and cut the stock pipes. Start long, since you can always cut more.
    Watch this step (Juju Clone, on an E93 335i) (0:15–0:47)

  8. Remove the mufflers

    • Undo the 12mm and E10 bolts and drop the mufflers out.
    Watch this step (0:47–1:34)

  9. Fit the pipes

    • Fit the hanger brackets. Loosening the 18mm exhaust mount lets the pipes slide on more easily.
    Watch this step (1:34–2:22)

  10. Tighten and fit the tips

    • Tighten every bolt, then fit and line up the tips.
    Watch this step (2:22–3:11)

  11. Mark and cut the pipes

    • Raise the car, hold the kit up to see where to cut, and cut the stock pipes. Start long, since you can always cut more.
    Watch this step (Juju Clone, on an E93 335i) (0:15–0:47)

  12. Remove the mufflers

    • Undo the 12mm and E10 bolts and drop the mufflers out.
    Watch this step (0:47–1:34)

  13. Fit the pipes

    • Fit the hanger brackets. Loosening the 18mm exhaust mount lets the pipes slide on more easily.
    Watch this step (1:34–2:22)

  14. Tighten and fit the tips

    • Tighten every bolt, then fit and line up the tips.
    Watch this step (2:22–3:11)

  15. Mark and cut the pipes

    • Raise the car, hold the kit up to see where to cut, and cut the stock pipes. Start long, since you can always cut more.
    Watch this step (Juju Clone, on an E93 335i) (0:15–0:47)

  16. Remove the mufflers

    • Undo the 12mm and E10 bolts and drop the mufflers out.
    Watch this step (0:47–1:34)

  17. Fit the pipes

    • Fit the hanger brackets. Loosening the 18mm exhaust mount lets the pipes slide on more easily.
    Watch this step (1:34–2:22)

  18. Tighten and fit the tips

    • Tighten every bolt, then fit and line up the tips.
    Watch this step (2:22–3:11)

  19. Remove the exhaust

    • Raise the car, undo the clamps and hangers, and lower the rear exhaust.
    Watch this step (FCP Euro, Remus on an E9X M3) (2:58–5:33)

  20. Swap the hangers

    • Move the hangers over to the new parts.
    Watch this step (5:33–7:53)

  21. Install the link pipe

    • Fit the link pipes to the exhaust.
    Watch this step (7:53–8:39)

  22. Install the muffler

    • Hang the muffler and line it up.
    Watch this step (8:39–10:25)

  23. Fit the tips

    • Fit and line up the tips, then tighten everything.
    Watch this step (10:25–11:08)

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.