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hey guys right now i have a ravin z55 i have had it on my car for about 2 1/2 years now and recently i have noticed that when i first start it up it sounds as if it is breakin apart inside the muffler like a humming sound i dunno if i should replace it or not. i am also considering new exhaust now , flowmaster american thunder , edelbrok any imput would be great. btw i am would like to hear comments on your exhaust and what u like and dislike about them.
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2000 firebird w68, auto, t-tops , 3.42 , k&n, whisper lid, taylor 8mm spark plug wires , bosch spark plugs , 3\"in/out carsound CAT , 3\" i pipe, take off trans am muffler, C6 Z06 rims -
Maybe the catalytic converter going bad? Dont think the muffler would come apart. Couldn't tell you unless I heard it. If you do go with new exhaust, I strongly suggest the exhaust setup I have on my RS, sounds awesome.2003 Nissan 350Z Touring Coupe, Daytona Blue, Frost leather interior, navigation, 18 inch wheels, M6, fully loaded, intake, crank pulley.<br /><br />Previous cars:<br />1991 Mustang (347)<br />2002 RS Camaro<br />1985 IROC-Z (305)<br />1994 Camaro convertible V6
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