I have a K/N CAI and my rubber coupling for it dos not want to fit on tight, I have tried doing 7 diffrent things to make it fit right, it fits but Im able to push down with not much force and it pops off..

anyone have this problem?? or know of the cure???

 

Home Depot etc have 'Fernco' couplings that you might look into[rubber with 2 clamps and fit various sizes ]

 

The coupler between the K&N CAI and MAF tore on mine, and I went to Home Depot for the fernco just like Mtrhds stated above. It costs roughly $5 - $8 for a 3" connector.

However, it is a slight pain to slip on. I had to heat mine up in hot water before it became malleable enough to slip on. Very snug fit, but works well...