Home › BMW 3 Series E90 / E92 / E93 › Cold air intake

E90/E92/E93 Cold air intake

Why do it

Tools you'll need

• Socket set
• Screwdrivers
• Torx bits
• Socket set
• Screwdrivers
• Torx bits
• Flathead screwdriver
• T25 Torx
• 6mm socket
• Phillips screwdriver
• Socket set
• Torx bits
• Screwdrivers

Starting out? See our budget tool list.

Parts to buy

• Injen SP1121BLK short ram intake (328i / 328xi) The same brand and style of intake as our video.Fits 2006–2013 · 325, 325xi, 330, 330xi, 328, 328xi
• BMS dual cone intake (N54) Twin filters that replace the stock airbox. Listed for the N54 335i, 335xi and 335is.Fits 2007–2013 · 335i (N54), 335xi (N54), 335is
• BMS E-chassis performance intake (N55) The exact intake in our video. Listed for the 2011–2013 335i and 335xi coupe.Fits 2011–2013 · 335i (N55), 335i xDrive (N55)
• Eventuri EVE-E9X-CF-INT carbon intake (M3) The same intake as our video, without the optional plenum.Fits 2008–2013 · M3

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 airbox

   • Unplug the airflow sensor, loosen the clamp and lift out the stock airbox.
   ▶ Watch this step (airedup, on a 328i with an Injen) (1:28–2:13)

2. Fit the intake

   • Mount the new tube and filter, then move the airflow sensor over.
   ▶ Watch this step (2:13–4:20)

3. Finish up

   • Tighten every clamp and plug the sensor back in.
   ▶ Watch this step (4:20–5:03)

4. Remove the cowl and covers

   • Take off the plastics over the airbox.
   ▶ Watch this step (Crazy Car Mods, on an N54 BMW) (0:54–2:22)

5. Remove the airbox

   • Undo the clamps and bolts, including the tight ones at the back, and lift out the stock airbox.
   ▶ Watch this step (2:22–7:16)

6. Fit the dual cones

   • Push the cones on to the inlets and tighten the clamps, then refit the plastics.
   ▶ Watch this step (7:16–8:56)

7. Loosen the stock intake

   • Remove the engine cover and loosen the clamp at the airbox.
   ▶ Watch this step (Abhi D, on an E92 335i) (2:21–3:14)

8. Remove the airbox

   • Undo the T25 Torx bolts and lift out the airbox.
   ▶ Watch this step (3:14–4:27)

9. Move the sensor

   • Fit the airflow sensor to the new intake with the supplied screws.
   ▶ Watch this step (4:27–5:26)

10. Fit the intake

    • Push the intake on and tighten the clamp with a 6mm socket. Don't overtighten it.
    ▶ Watch this step (5:26–7:52)

11. Fit the bracket

    • Bolt on the supplied bracket so the intake can't move.
    ▶ Watch this step (7:52–8:56)

12. Remove the airbox

    • Take the stock airbox and its ducts off the engine.
    ▶ Watch this step (FCP Euro, on an E9X M3) (2:15–3:00)

13. Fit the Eventuri intake

    • Bolt on the carbon housings, connect them to the plenum and tighten every clamp.
    ▶ Watch this step (8:30–13:24)

How to know it worked

• No check-engine light.
• Clamps stay tight after a drive.
• Neither cone touches the hood or a hot part.
• No check-engine light.
• The intake doesn't move when you push it.
• No check-engine light.
• Everything sits tight with the engine running.
• No check-engine light.

Follow your part's instructions and your service manual's torque specs.