Sorry if the video quality is kinda sh!tty but this was more about the sound than anything. When you buy a CAI your diverter sounds like a blow off valve when you let off the gas. View the following for proof. By the way it is much louder in real life and Im assuming it will be louder with a bigger turbo but again thats my assumption. Anyway here you go.


The DV video clips

yea, my friend bought an evo intake for his 1.8T gti and he got a new diverter valve and it does sound like a regular BOV, cept its internally vented. his sounds like a loud exhale actually. its rather nice, if you ask me