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Impreza · Handling

Impreza Rear sway bar

Your Impreza

Pick your year to see what fits.

This page covers the non-turbo Impreza, including the 2.5RS, Outback Sport and RS. The WRX and STI get their own page.

Less body roll
Medium$300–$3601–2 hrs
All Impreza mods

Why do it

The cheapest big handling upgrade on an Impreza. A thicker, adjustable rear bar cuts body roll and stops the car pushing wide in corners.

Tools you'll need

Parts to buy

Double-check fitment before buying.

Before you start

  • The Whiteline bar fits 2008–2016 Imprezas. It comes with new bushings, mount braces and grease.
  • Start on the middle (or softest) hole. You can stiffen it later.
  • The Whiteline BSR36Z fits 2003–2007 Imprezas that came with a factory rear sway bar (look for a bar running across behind the rear wheels).
  • Start on the softest hole. You can stiffen it later.

Steps

  1. Grease the new bushings

    • Coat the inside of each new bushing with the grease from the kit and slide them onto the bar where the stock bushings sat.
    Watch this step (on a 2008 Impreza) (4:20–5:36)

  2. Raise the rear

    • Raise the rear and support it on jack stands so the suspension hangs evenly.
    Watch this step (5:36–5:44)

  3. Remove the stock bar

    • Unbolt the end links from the bar, then the two bushing brackets, and lower the stock bar out.
    Watch this step (5:44–7:36)

  4. Fit the new bar

    • Lift the new bar in, fit the brackets and braces over the bushings, and finger-tighten them.
    Watch this step (7:36–7:42)

  5. Connect the end links

    • Bolt the end links to the hole you chose and finger-tighten. Fit the spacer bushing from the kit where shown.
    Watch this step (7:42–8:16)

  6. Torque everything

    • Torque the bracket bolts and end link bolts to spec, keeping the spacer in place. Do this with the car's weight on the wheels if you can.
    Watch this step (8:16–9:00)

  7. Raise the rear

    • Raise the rear and support it on jack stands so both sides hang evenly.
    Watch this step (on a 2004 WRX, the same chassis) (0:00–2:05)

  8. Lay out the parts

    • Grease the inside of the new bushings with the grease from the kit and slide them onto the new bar.
    Watch this step (2:05–5:05)

  9. Remove the stock bar

    • Unbolt the end links from the bar, then the two bushing brackets, and lower the stock bar out.
    Watch this step (5:05–6:57)

  10. Fit the new bar

    • Lift the new bar in, fit the brackets over the bushings, connect the end links to the hole you chose, and snug everything up.
    Watch this step (6:57–10:45)

  11. Torque and test

    • Torque the brackets and end links to spec with the car's weight on the wheels, then test drive.
    Watch this step (10:45–13:30)

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.