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Anyone wondering what inside a stock muffler looks like? (pics inside)
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01-06-2013, 10:56 PM | #1 |
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Anyone wondering what inside a stock muffler looks like? (pics inside)
So after this backfiring happened i noticed weird stuff coming out my exhaust.
thread to backfiring. http://www.e90post.com/forums/showthread.php?t=788425 anyways i dropped the exhaust yesterday and took it to my buddies house where we wanted cut the cats open and check on the or remove them because they sounded like they were screwed. long story short we cut the secondaries open and there was nothing in there!! lol so we thought it might be piled up in the muffler so we cut the muffler open and i guess we cut too short. but on the uncut side i think contains padding and straight pipe with holes in it, but the cats probably passed right through it. so I'm going to weld it up tomorrow morning and re install it on the car in the mean time here is a pic of the the progress enjoy. |
01-07-2013, 07:54 AM | #7 |
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01-07-2013, 08:15 AM | #8 |
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01-07-2013, 09:41 AM | #9 |
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I literally almost fell out of my seat and spit coffee all over my PC screen ROFLMAO!!!
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01-07-2013, 11:39 AM | #10 |
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Looks like a perforated core and fiberglass or something. That's why most cat back's don't add too much power, it's already a pretty good exhaust from the factory.
Without that packing it might sound like a tin can though. Have you driven it? |
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01-07-2013, 01:24 PM | #11 |
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no not yet. my car is still broken but if it does sound like a tin can im gonna
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01-07-2013, 01:56 PM | #12 | |
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01-07-2013, 02:47 PM | #13 | |
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01-07-2013, 04:23 PM | #14 |
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01-07-2013, 05:03 PM | #15 | |
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01-08-2013, 10:14 AM | #16 | |
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01-08-2013, 10:23 AM | #17 |
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ok I have some important info for UK owners.
I have catless DP and stock exhaust so in theory I have no cats at all. Well I passed my MOT test with the same results as stock DP. Anyone worried about no cats well I say go for it UK testers will pass the car in any case. |
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01-08-2013, 10:48 AM | #18 |
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01-09-2013, 04:53 AM | #20 | |
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Those are not resonators, they are catalytic converters. Cut an intact one open and it will be BEYOND obvious that it is not a resonator and is indeed a catalytic converter It's a bit more different than that actually, that's why removing packing material doesn't achieve the same sound. |
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01-09-2013, 06:13 AM | #21 |
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NASTY!
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