[chevaps]

A few weeks back i installed a K&N panel filter in my focus. Never really noticed any sucking noises untill today. Some suspension guys were looking at installing a strut brace and had to remove the pipe going between the airbox and throttle body to try and make it fit, and i have a feeling they may not have put it back they way it should be. I am worried the sucking noises could possibly be a leak either at the airbox or throttle body..... It happens at about 4500 rpm and above and seems to be coming from the throttle body area.

Could all those forum members who have a BMC or K&N filter installed just give me an idea if they get any sucking sounds around that rev range.

Also, if i did have a leak, would it sound like a sucking sound or more like whining or anything else.

Thanks in advance

Tom