Meisterschaft GT2 question

pooyab · 07-13-2015, 12:20 PM

After a couple hundred miles of driving, I noticed this. The tips on the right have an even coating of black, while on the left, the outer one looks like its getting the inner tips coating as well. I was talking to another forum member with the GT2 and he said he noticed it on his too. There's airflow out of the inner one but it's not getting dirty. Even after I cleaned it, there was still slight color difference Anyone else have this? Is it normal?

jra85 · 07-14-2015, 09:37 AM

My Meisterschaft GT does the same thing. Far left tip seems to get the dirtiest. Don't know whether this indicates uneven flow for that side.

pooyab · 07-14-2015, 02:08 PM

I have a theory for it but not sure if I'm right. I checked mine and there is flow through that end, but I think because the exhaust particles have a higher weight than the air it's traveling in, even though air flows out of both, the momentum of the particles carries them over to the outer one. You can see the pipe enters tips on the right more centered than the ones on the left. The left pipe curves into the tips. So I think the particles continue in that general direction which is why there's a higher coating on the outside. Pics show what I mean more clearly, it's easier to see from a lower angle.
It might be a stretch but seems logical to me.

jra85 · 07-15-2015, 09:28 AM

Interesting theory and it might actually be valid. The other difference is the tips on right the go through the muffler with the indentation in the center while the muffler for the left tips does not have the indent. But the difference is almost certainly due to the variation in piping between the two sides. I just clean mine frequently, and have even used Mother's Aluminum Polish (which works on stainless steel too) on the insides to brighten them up a little.

BrewRifle · 07-15-2015, 09:51 AM

Quote:

Originally Posted by jra85

Interesting theory and it might actually be valid. The other difference is the tips on the go through the muffler with the indentation in the center while the muffler for the left tips does not have the indent. But the difference is almost certainly due to the variation in piping between the two sides. I just clean mine frequently, and have even used Mother's Aluminum Polish (which works on stainless steel too) on the insides to brighten them up a little.

My GT2 is the same as well, left most pipe is always the dirtiest. I'm also thinking the design theory is accurate.

Does the polish work on titanium? If so I might give it a whirl. I usually just end up wiping it down with a rag during bath time.

jra85 · 07-15-2015, 10:48 AM

Quote:

Originally Posted by BrewRifle

Does the polish work on titanium?

Not sure, just did some Googling and consensus seems to be that, at least for the Aluminum polish, it doesn't really do much for it and may even take off the "burnt" effect of the tips (if the GT2 Ti has that).

BrewRifle · 07-15-2015, 10:50 AM

Quote:

Originally Posted by jra85

Not sure, just did some Googling and consensus seems to be that, at least for the Aluminum polish, it doesn't really do much for it and may even take off the "burnt" effect of the tips (if the GT2 Ti has that).

Ahh ok, yeah the Ti has the subtle burnt tips so that would be a no go

07-13-2015, 12:20 PM	#1
pooyab Major 330 Rep 1,158 Posts Drives: 2011 BMW M3 2020 BMW M5C Join Date: Jan 2014 Location: Bay Area, CA iTrader: (2) Garage List 2011 BMW M3 [0.00]	Meisterschaft GT2 question After a couple hundred miles of driving, I noticed this. The tips on the right have an even coating of black, while on the left, the outer one looks like its getting the inner tips coating as well. I was talking to another forum member with the GT2 and he said he noticed it on his too. There's airflow out of the inner one but it's not getting dirty. Even after I cleaned it, there was still slight color difference Anyone else have this? Is it normal? Attached Images
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07-14-2015, 09:37 AM	#2
jra85 M3NTAL 132 Rep 608 Posts Drives: 2011 E92 M3 ZCP Join Date: May 2010 Location: Long Island, NY iTrader: (1)	My Meisterschaft GT does the same thing. Far left tip seems to get the dirtiest. Don't know whether this indicates uneven flow for that side.
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07-14-2015, 02:08 PM	#3
pooyab Major 330 Rep 1,158 Posts Drives: 2011 BMW M3 2020 BMW M5C Join Date: Jan 2014 Location: Bay Area, CA iTrader: (2) Garage List 2011 BMW M3 [0.00]	I have a theory for it but not sure if I'm right. I checked mine and there is flow through that end, but I think because the exhaust particles have a higher weight than the air it's traveling in, even though air flows out of both, the momentum of the particles carries them over to the outer one. You can see the pipe enters tips on the right more centered than the ones on the left. The left pipe curves into the tips. So I think the particles continue in that general direction which is why there's a higher coating on the outside. Pics show what I mean more clearly, it's easier to see from a lower angle. It might be a stretch but seems logical to me. Attached Images
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07-15-2015, 09:28 AM	#4
jra85 M3NTAL 132 Rep 608 Posts Drives: 2011 E92 M3 ZCP Join Date: May 2010 Location: Long Island, NY iTrader: (1)	Interesting theory and it might actually be valid. The other difference is the tips on right the go through the muffler with the indentation in the center while the muffler for the left tips does not have the indent. But the difference is almost certainly due to the variation in piping between the two sides. I just clean mine frequently, and have even used Mother's Aluminum Polish (which works on stainless steel too) on the insides to brighten them up a little. Last edited by jra85; 07-15-2015 at 10:45 AM..
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