I rear ended my 02 ep3 si on the lower right side and the muffler was hit. I was backing up really slowly into a brick wall due to me being an idiot and forgetting a wall behind me. The speed I was going at was barely 5mph. After that, I noticed a new really minor rumble from the exhaust system. Anyone know the possible cause?

 

Split one of the welded seams on the muffler or resonator.

 

I also noticed the b pipe is a lowered a bit. Could it be the hanger as well?