I could not hear my BOV working today. It was the first time I have had it out since going turbo. Is there any way to adjust a blitz blow off valve?

 

yea, there is a nut and bolt like thing at the top of the bov. loosen the nut and use a hex key (i think thats what they are called) adjust it.

its better if you adjust it while the motor is on so u can get the right adjustment to where it is making sounds while it idling.

rev the motor while ur under the hood to hear how it would sound.