2.2L L61 Performance Tech 16 valve 145 hp EcoTec with 155 lb-ft of torque

Magnaflow Exhaust Problem 07 LT 2.2

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Old 06-07-2009, 06:02 PM
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Magnaflow Exhaust Problem 07 LT 2.2

I have had my MagnaFlow Cat back exhaust on my 07 Cobalt for a little over a year now and the resonator went bad so I replaced it about a week ago and the new one went bad as well. I was thinking about just deleting the resonator all together but I'm not sure how it will sound and I want to install new headers and a down pipe and a new cat but i'm not quite sure what is causing the resonator to go bad. Any Ideas?
Old 06-07-2009, 08:10 PM
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what's making you think the resonators are going bad?
Old 06-07-2009, 08:11 PM
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do u have SAI? lol and it is a header no headers
Old 06-08-2009, 12:41 AM
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Originally Posted by randizzle
what's making you think the resonators are going bad?
yeah ive never heard of any part of an exhaust system "go bad". i dont really see how it possibly can except for maybe a leak (hole) in the piping?
Old 06-08-2009, 12:42 AM
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bad cat? idk how a res goes bad? lol
Old 06-08-2009, 12:44 AM
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My resonator went bad as well! sounded like a heat shield ratteling, which is what I thought it was, took that off completely, wasnt that, couldnt figure it out, took out the resonator, put a new one in, and was good to go.
Old 06-08-2009, 12:46 AM
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Originally Posted by 07MetallicSC
My resonator went bad as well! sounded like a heat shield ratteling, which is what I thought it was, took that off completely, wasnt that, couldnt figure it out, took out the resonator, put a new one in, and was good to go.
eh idk if thats considered "going bad" it was just fabricated wrong from the start imo.
Old 06-08-2009, 06:46 PM
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send it back to maganflow and have it fixed...thats a manafacturer problem...
Old 06-08-2009, 10:39 PM
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Originally Posted by jnicks510
eh idk if thats considered "going bad" it was just fabricated wrong from the start imo.
i doubt it that it was wrong from the start, it lasted 2 years before it **** out
Old 06-08-2009, 11:36 PM
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Originally Posted by 07MetallicSC
i doubt it that it was wrong from the start, it lasted 2 years before it **** out
hmm thats interesting. i havent heard anything like this before. im going to be ignorant and say they manufactured it with low quality material lol.

Last edited by jnicks510; 06-09-2009 at 05:03 PM.
Old 06-09-2009, 08:06 AM
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im not sure, Ive had magnaflow on my past 3 vehicles and had great products, but between my resonator shitting out, then the exhaust pipe breaking off of the muffler about a few weeks later after that it kinda left a sore taste in my mouth with them, idk who im going with this time when I bump up to 3 inch in a few weeks. Gotta get ready for the 50 trim :-)
Old 06-09-2009, 05:06 PM
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Originally Posted by 07MetallicSC
im not sure, Ive had magnaflow on my past 3 vehicles and had great products, but between my resonator shitting out, then the exhaust pipe breaking off of the muffler about a few weeks later after that it kinda left a sore taste in my mouth with them, idk who im going with this time when I bump up to 3 inch in a few weeks. Gotta get ready for the 50 trim :-)
idk what to tell you. maybe you just got unlucky and got a bad part this time?
Old 06-11-2009, 04:15 PM
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my advice buy a better cat back no offense
Old 06-11-2009, 04:26 PM
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Originally Posted by 08CPE?SS
my advice buy a better cat back no offense
buy a better catback? lol magnaflow is one of the best maybe aside from hahn
Old 06-13-2009, 12:06 AM
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Originally Posted by 07MetallicSC
buy a better catback? lol magnaflow is one of the best maybe aside from hahn
obviously not if more than one person is complaining about the same issue... and a retarded ine anyway resonator going bad. so obviously not one of the best
Old 06-13-2009, 12:33 AM
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lol so in your deffense you have two people vs how many who have bought them and had no problems? reload your gun and try again. And what is your deffinition of a "better catback"? this aughta be good....
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