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A4 Cold air intake Install Guide

Your A4

Pick your year to see what fits.

This page covers the US A4.

+5–12 whp (est.)
Medium$250–$4501 hr
All A4 mods

Why do it

An open intake sounds better and breathes easier.

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 intake

    • Remove the stock airbox and fit the new intake.
    Watch this step (Adam, on a B8 A4) (0:00–2:12)

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.

Cold Air Intake install guides for other cars

More A4 mods