Found out why muffler was noisy
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From: midwest
Found out why muffler was noisy
Purchased car year ago sounded good then louder as months went on - purchased new set
As a Fister upgrade is to happen- then all of a sudden car sounded like a total POS and here is why
As a Fister upgrade is to happen- then all of a sudden car sounded like a total POS and here is why
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Race Director
Joined: Sep 2012
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From: SOcialist republic of CALifornia
OP, I'm not sure I understand the scenario. Did you purchase new mufflers and find that they were gutted? Or did your already-gutted mufflers somehow grow louder over time?
All of the sudden I'm feeling like a very accomplished grinder and welder - that thing looks like a dragon pissed weld all over it.
*edit* Oh, crap - it just rotted away, leaving a huge hole in the muffler? That's insane. The "Now it's more mellow" means with the new Fisters installed? I would imagine going from effectively no muffler to ANYTHING would sound better.
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Three Wheelin'
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Do people do this mod to pass a visual inspection for smog? Would a nicely made delete pipe/kit not also pass visual or do the gutted mufflers still keep the tone down?
(Haven't lived in CA long enough to do a smog test)
(Haven't lived in CA long enough to do a smog test)
Race Director
Joined: Sep 2012
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From: SOcialist republic of CALifornia
There is a visual inspection; however, mufflers are not emissions equipment, so there would be no issue with using muffler delete pipes. Cat delete pipes, on the other hand, will net you a fail.
In the case of this badly holed muffler, the car would fail smog if the tech happens to use the sniffer on that muffler's exhaust tip because the sniffer computer will detect that the products of combustion are not present in the expected quantities. If there's an exhaust leak, the sniffer can't know if it's before or after the cat - so the car will fail.
In the case of this badly holed muffler, the car would fail smog if the tech happens to use the sniffer on that muffler's exhaust tip because the sniffer computer will detect that the products of combustion are not present in the expected quantities. If there's an exhaust leak, the sniffer can't know if it's before or after the cat - so the car will fail.
Thread Starter
Rennlist Member
Joined: Jan 2005
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From: midwest
There is a visual inspection; however, mufflers are not emissions equipment, so there would be no issue with using muffler delete pipes. Cat delete pipes, on the other hand, will net you a fail. In the case of this badly holed muffler, the car would fail smog if the tech happens to use the sniffer on that muffler's exhaust tip because the sniffer computer will detect that the products of combustion are not present in the expected quantities. If there's an exhaust leak, the sniffer can't know if it's before or after the cat - so the car will fail.
Race Director
Joined: Sep 2012
Posts: 10,424
Likes: 229
From: SOcialist republic of CALifornia
Were both mufflers that bad? I'm surprised the sniffer detected enough emissions to pass the car - in CA, the systems are clever enough to know when the probe isn't properly installed in a normal exhaust stream...
Thread Starter
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From: midwest
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