TT Gasman

I went to the track yesterday and now my driver side PSE is rattling like crazy, very loud and annoying. It has always had a very slight rattle that seemed to go away after I tightened everything up, but it now appears to be back with a vengeance. If I grab onto the exhaust tip (with a glove) the rattle disappears. FWIW this is an early style PSE for the 3.4, I guess the valve must be broken. Luckily the parts have a 2 year warranty. Anyone else have this problem? Maybe the PSE is not up to track use.
Between this, my tires "flat spotting" and a cracked windshield from a rock this was an expensive track outing.