Mine's only been on for a couple of months but I have had no problems. I used the gasket they sent and the stock clamp. Easy install and lower EGTs too..
I paid less than 2 bills for it after shipping but he may have been running a special.

Lowco, the stripes are from westsidevinylgraphics.com. I got them off of E-bay for under $50.00 and put them on myself. Man! What a pain in the