yesterday i notcied a little diff in the exhaust note while i was driving... today i noticed it to. its not as loud as it should be ( straight pipe, v8) while iw as driving to walgreens today, i noticed it has a lack of the power it usually has, so after i came home, i let the car idle (was idling around 600-625rpm) , and went to the side and listen to the pipe to see if i could hear any bangin etc. i saw chips about half/16th in diameter comming o utta the pipe. kinda like a very tiny snow fall haha. and i was wondering, is this the catalytic converter finally breakin apart? car is a 1990 with 100,000miles on it. and i think i heard a little rattle inside the area of the cat... so i dunno what to think. if its the cat, its getting cut off and replaced with a pipe, and hope tp god it doesnt get a **** load louder... any ideas?