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Civic Cold air intake

Your Civic

Pick your year to see what fits.

This page covers the US Civic, 1992 on.

+3–15 whp (est.)
Medium$247–$6031–3 hrs
All Civic mods

Why do it

Pulls cooler air for more power and better sound.

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 battery

    • Take out the battery.
    Watch this step (Injen on a 2004 Civic EX) (0:46–2:53)

  2. Remove the factory intake

    • Take the stock parts out.
    Watch this step (2:53–4:20)

  3. Install the intake

    • Fit the tube and filter, then tighten the clamps.
    Watch this step (4:20–8:22)

  4. Remove the stock intake

    • Take the stock intake out.
    Watch this step (Hybrid Racing on an EP3 Si) (2:21–3:44)

  5. Install the new intake

    • Fit the new tube.
    Watch this step (3:44–6:48)

  6. Fit the filter

    • Line up the filter.
    Watch this step (6:48–8:50)

  7. Secure the pipe

    • Tighten everything.
    Watch this step (8:50–11:06)

  8. Remove the air box

    • Take out the air box.
    Watch this step (on a 2006-2011 Civic) (0:42–2:27)

  9. Remove the ECU

    • Move the ECU out of the way.
    Watch this step (2:27–6:04)

  10. Install the intake

    • Fit the intake.
    Watch this step (6:04–10:11)

  11. Install the tube and hose

    • Fit the tube and hose.
    Watch this step (10:11–13:34)

  12. Finish up

    • Fit the lower section, wiring and battery.
    Watch this step (13:34–21:38)

  13. Remove the stock airbox

    • Take out the airbox.
    Watch this step (K&N on a 2006-2011 Si) (1:09–2:31)

  14. Disconnect the hoses

    • Undo the hoses.
    Watch this step (2:31–4:11)

  15. Move the coolant hose

    • Fit the coolant hose.
    Watch this step (4:11–6:06)

  16. Assemble the intake

    • Build the new intake.
    Watch this step (6:06–8:07)

  17. Finish up

    • Fit it and tighten everything.
    Watch this step (8:07–9:43)

  18. Remove the factory parts

    • Take off the factory parts.
    Watch this step (Injen on a 2012-2015 Si) (0:00–2:20)

  19. Remove the airbox and sensor

    • Take out the airbox.
    Watch this step (2:20–5:48)

  20. Move the coolant hose

    • Adjust the coolant hose.
    Watch this step (5:48–7:11)

  21. Remove the battery and tray

    • Take them out.
    Watch this step (7:11–10:26)

  22. Remove the resonator

    • Take out the resonator.
    Watch this step (10:26–17:07)

  23. Refit the battery

    • Install the bracket and battery.
    Watch this step (17:07–22:23)

  24. Mount the intake

    • Fit the intake parts.
    Watch this step (22:23–26:15)

  25. Fit the pipe

    • Assemble the pipe.
    Watch this step (26:15–29:08)

  26. Remove the stock intake

    • Take it out.
    Watch this step (PRL on a 2018 Hatch Sport) (0:36–1:53)

  27. Install the PRL intake

    • Fit it and tighten everything.
    Watch this step (1:53–3:10)

  28. Remove the stock parts

    • Disconnect the battery and sensor, and take off the stock parts.
    Watch this step (DC Sports on a 2017-2020 Si) (0:20–1:49)

  29. Install the intake

    • Fit the mounts, pipe and filter.
    Watch this step (1:49–3:43)

  30. Put it back

    • Refit the covers and battery.
    Watch this step (3:43–4:30)

  31. Remove the stock airbox

    • Take it out.
    Watch this step (PRL on an 11th gen Si) (0:35–2:00)

  32. Prepare the new airbox

    • Build the new airbox.
    Watch this step (2:00–4:21)

  33. Install the intake

    • Fit it.
    Watch this step (4:21–5:26)

  34. Remove the stock airbox

    • Take out the airbox.
    Watch this step (PRL on an FL5) (2:58–6:15)

  35. Remove the ECU and bracket

    • Take these off.
    Watch this step (6:15–9:22)

  36. Install the PRL bracket

    • Fit the bracket.
    Watch this step (9:22–12:09)

  37. Secure the airbox

    • Fit the airbox.
    Watch this step (12:09–15:11)

  38. Line up the snorkel

    • Line it up.
    Watch this step (15:11–19:43)

  39. Connect the hoses

    • Connect the hoses and sensors.
    Watch this step (19:43–25:22)

  40. Remove the stock parts

    • Remove the bolts, pipe and hoses.
    Watch this step (short ram on a 1992-1995 Civic) (0:34–1:35)

  41. Remove the stock intake

    • Take it out.
    Watch this step (1:35–1:48)

  42. Fit the new intake

    • Secure the adapter and pipe.
    Watch this step (1:48–2:29)

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.