Magnaflow problem
#1
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Magnaflow problem
First off....I DID search for my problem and got a couple of ideas, but nothing concrete.
So here is the problem. My exhaust sounds like a "fart can". For those who are going to say it should go away after 10 minutes, it does not do that with mine. It is constantly there when I accelerate. Even after I drive from Fort McMurray to Calgary (a 7 1/2 hour drive), it is still there when I accelerate.
I just want to see if anyone has any ideas what this could be.
Thanks!!!
So here is the problem. My exhaust sounds like a "fart can". For those who are going to say it should go away after 10 minutes, it does not do that with mine. It is constantly there when I accelerate. Even after I drive from Fort McMurray to Calgary (a 7 1/2 hour drive), it is still there when I accelerate.
I just want to see if anyone has any ideas what this could be.
Thanks!!!
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It is the catback. It does not rattle, and there is nothing loose in the resonator or muffler.
I get the "fart can" sound under medium to hard acceleration, and it happens all the time. When the exhaust is cold, warm, hot....does not matter.
I get the "fart can" sound under medium to hard acceleration, and it happens all the time. When the exhaust is cold, warm, hot....does not matter.
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Resonator was replaced a couple of months ago under warranty. It had started rattling. There is none of that this time.
I am using the ZZP midlength header and downpipe with the Magnaflow cat.
I am using the ZZP midlength header and downpipe with the Magnaflow cat.
#9
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I still have the cat, and I do not have the "high flow" cat. The baffles in the car go side to side and it looks the same inside as it does with the stock cat.
#10
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That is real odd. I have had mine on for almost 2 years and it still has the deep tone. And dont sound like a fart can. Maybe you got one of the cheaper versions of it who knows. I paid 700 for mine like 2 years ago.
#13
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This is off ZZP's Website.
"Our 3" downpipe includes a Magnaflow converter, which flows 40% more than the stock unit. It eliminates the 2" restriction and the dimple where the O2 sensor normally resides. Look for gains of 5HP on a stock engine and over 10 on a modified Cobalt."
It is your Downpipe/Header Combo That makes it sounds like this. Put your Stock Header/DP back on and it will sound good again.
"Our 3" downpipe includes a Magnaflow converter, which flows 40% more than the stock unit. It eliminates the 2" restriction and the dimple where the O2 sensor normally resides. Look for gains of 5HP on a stock engine and over 10 on a modified Cobalt."
It is your Downpipe/Header Combo That makes it sounds like this. Put your Stock Header/DP back on and it will sound good again.
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Nope. I had the resonator replaced first because it was rattling and loose inside. Then about two weeks later I had the header and resonator put on and it sounded awesome! Then about a month after they were put on is when the "fart can" sound started happening.
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#23
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off subject.. but did ur resonator rattle right around 2500 rpms because something is making a rattling/vibrating noise on mine and i cant figure out what it is
#24
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Nope.
Nope...it did it all the time.
Nope...it did it all the time.
Last edited by DoubleLP; 04-07-2008 at 11:51 PM. Reason: Automerged Doublepost
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