E46 Air filter kit (6-cylinder Non-M / 320i, 323i, 325i, 328i)

Complete air filter kit for BMW E46 320i, 323i, 325i, 328i. 

Increases the amount of air which enters your engine, improving performance and throttle response. A heatshield is included to reduce the temperature of the air going into the air filter, reducing the chance of heatsoak. 

You can buy the kit with or without filter. Our filter of choice is from K&N, which are designed to last forever if maintained properly. We can only guarantee fitment if you include our filter. If you wish to use your own filter, note that you need a 76mm connection (this is the outside diameter of the air tube).
 
Included in the kit are: 

• Heatshield (incl. mounting brackets and weatherstripping)
• Mounting brackets
• Air tube
• Silicone coupler
• Hose clamps
• Hardware for installation
• K&N filter (optional)

Everything you need is included in the kit.

Heatshield installation manual