Yikes! Muffler discoloration can't be good.
08-03-2009, 02:48 PM
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Yikes! Muffler discoloration can't be good.
Hi Guys. I am another newbie to contend with, but here goes. I own a 2006 touring Z, with 18k on her (I live close to work). Walking out of the house last week and I spy this on her underside. Now I know mufflers get mighty hot after a while of driving, but methinks spotty discoloration is not supposed to happen. Any suggestions? I used search but came up with one posting and no replies. Hoping to have better luck here. Thanks for any help.
08-03-2009, 02:52 PM
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That's not suppose to happen. Not sure what's causing it...
08-03-2009, 02:52 PM
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Is that OEM or aftermarket exhaust? If aftermarket, what type?
Looks OEM to me.
Most of the discoloration seems to be heat related, if it looks like rust discoloration from the outside you might have an issue. Inferior welds and poor material cleaning prior to welding can cause slight pitting on stainless that will excellerate discoloration. The exhaust is suppose to be stainless steel throughout and should not be showing rust at all. I have equipment outside year round made from various grades of stainless and none of it has a rust anywhere.
Looks OEM to me.
Most of the discoloration seems to be heat related, if it looks like rust discoloration from the outside you might have an issue. Inferior welds and poor material cleaning prior to welding can cause slight pitting on stainless that will excellerate discoloration. The exhaust is suppose to be stainless steel throughout and should not be showing rust at all. I have equipment outside year round made from various grades of stainless and none of it has a rust anywhere.
Last edited by trodis; 08-03-2009 at 02:57 PM.
08-03-2009, 02:53 PM
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08-03-2009, 07:12 PM
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Stock exhaust painted for a reason? Maybe the prev owner was going for a Nismo look on a budget?
BTW - is this stick or auto?
BTW - is this stick or auto?
Last edited by johns350; 08-03-2009 at 07:13 PM.
08-04-2009, 05:57 AM
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08-04-2009, 10:25 AM
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Definately a OEM replacement, I just went and looked at my OEM exhaust in my basement and did a little searching on this forum and 2 others and all the mufflers from nissan have that flat black coating on the outside all the way around... What you probably have is an OEM replacement "not" made by nissan. Therefore the quality of the materials is unknown as well as the quality of it's constuction. My best guess is that this is a cracked weld in the piping within the silencer and the escaping heat has caused the discoloration on the outside. Is there any raspiness? Previous owner or dealership took the cheap route to fixing a dented or broken exhaust it looks like.
08-04-2009, 11:49 AM
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With that being said.......
OPTIONS:
1. if your not hardcore into modding, a stock exhaust can be had for cheap if not free from your local my350z buds, go to a few meets ask around on the local forum to you, etc............even check your local junk yard.
2. Go aftermarket - go big or go home....
Screwed........NO, but until you replace it your Z will be driving around with a CA-CA stain......the bad kind of skid marks........
d-end....
-J
Last edited by JasonZ-YA; 08-04-2009 at 11:52 AM.
08-04-2009, 12:39 PM
#18
I don't think its a replacement. Its a perfect match to a real Nissan muffler. The bend radiuses, spot welds, hangers, brackets are all Nissan.
To me, it looks like the stock muffler with cheap silver spray paint on it.
It was probably just the prior owner looking for some ghetto bling.
To me, it looks like the stock muffler with cheap silver spray paint on it.
It was probably just the prior owner looking for some ghetto bling.
