While driving the goat the other day I noticed all of the sudden a terrible exhaust leak. I got her home and got underneath and noticed one of the flange studs on the passenger side exhaust manifold was gone. I inspected the hole and the threads looked good. I picked up another stud today thinking it may have come loose and vibrated its way out. The new stud went in with no issues. while taking a test drive after about 10 minutes the same thing happened. Im thinking there is a crack and as the exhaust heats up its expanding and falling out. I am contemplating going with ram air restorations enterprises manifolds. has anyone used this brand? im trying to stay away from headers and with the 428 a little hopped up I figured these would breath better.