[RyAl]

I just got my Temporary Operating Permit the other day, so I can now drive my Cobra legally on the street. One thing I noticed is that I get a loud backfiring, which I hear at the exhaust pipe on the passenger side, when I let off on the gas after a HARD acceleration. This doesn't happen when I'm cruising at low RPM's, just after I really get into it. Any ideas/suggestions to alleviate this situation?