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Supra Downpipe Install Guide

Your Supra

Pick your year to see what fits.

This page covers the US GR Supra 3.0L.

+15–30 whp (est.)
Expert$449–$4493–4 hrs
All Supra mods

Why do it

A freer downpipe brings on boost faster and adds power with a tune.

Heads up

Check your local laws before changing a catalytic converter.

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.

Before you start

  • Check your local laws before changing a catalytic converter.

Steps

  1. Undo the clamp and sensors

    • Undo the V-band and O2 sensors.
    Watch this step (Bros FOURR, on an A90) (1:02–2:39)

  2. Remove the stock downpipe

    • Work it out.
    Watch this step (2:39–4:14)

  3. Fit the new downpipe

    • Fit it.
    Watch this step (4:14–5:15)

  4. Reconnect

    • Refit the sensors and mid-pipe.
    Watch this step (5:15–6:19)

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.

Downpipe install guides for other cars

More Supra mods