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My exhaust is completely stock. Around last week or so whenever I start the car up, the exhaust makes this really annoying buzzing sound for a few minutes. What could this be?
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mine does that when its cold. i think the cat might be going bad -
i think they should have a recall on the stock cats and replace them with some high-flow ones or something.. because the stock one sucks99\' W68 Firebird<br />SLP Ram air kit,Whisper Air Lid, k&n, 8mm Taylor Wires, Bridgestone Potenzas RE950, BMR Red LCAs, Pacesetter Headers and 3\"in catalytic converter with 2.75\" Flowmaster Cat-back<br /><br /> <a href=\"http://www.cardomain.com/memberpage/501008\" target=\"_blank\">http://www.cardomain.com/memberpage/501008</a>Comment
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yeah dude its probably your cat...jeez the GM cats suck real bad or something...everyone's seems to go out.Comment
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Everybodies cat converters go out sooner or later.Mustangs.. Come to the darkside...<br /><br />The dark side is the path to the shadow of greed. =DComment
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Should last longer than 2 years though...Originally posted by KBeezy:
Everybodies cat converters go out sooner or later.Patrick<br />Sick Sixx Member<br /><b>97 Mystic Teal Camaro</b><br />425RWHP @14PSI<br />Old setup:<br />330RWHP @7PSI 13.9 @ 106.6 <a href=\"http://www.fullthrottlev6.com/forums/vbgarage.php?do=view&id=4\" target=\"_blank\">Mods</a>Comment
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Not necessarily.... Catalytic converters are very tempermental and can go out at anytime without warning.2000 Firebird. Whisper Lid, True duals, TSP mail order tune, Built Tranny , TCI 2800 stall verter, B&M tranny cooler, Eaton LSD, 3.42 gears. Current best ET. 15.232 89.09 MPH 2.175 60ft on stock 3.42\'s and open diff.<a href=\"http://www.geocities.cComment
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Had a problem with buzzing from the electric gas pump on a 98 V6 bird. Nothing you can do, unless, you want to change itComment
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its your cat making that sound, i have it do, nothing big to worry about, might not pass emmisions, but oh well.Comment
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Can anyone suggest a high flow CAT that works with the stock exhaust on a 97 3.8 camaro. I almost failed emmisions yesterday and I know my cat is gone cause my exhaust has a buzzing/rattling noise.Comment
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carsound cat seem to be pretty popular on here and should work with stock exhaust if you get the right sizeComment
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Can anyone tell me what the stock exhaust size is on a 97 3.8 camaro? I would like to order a carsound cat but dont know which one to get.Comment
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