325i middle exhaust which one

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markus_74
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Post Thu Jun 09, 2016 1:06 pm

Hello,

I found 2 type of middle exhaust for 325i non cat.

Which one should I choose?

Also what make different between good brand boysen, ebenspaecher to cheaper brand? I found cheap brand but use same quality aluminum steel made by Krupp thyesen, so I think it will give same life time before rusty? Or what make different between cheap and boysen? Design or sound? Or just brand?

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biffer
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Post Thu Jun 09, 2016 11:54 pm

exhaust number 2 looks to be better than the first-looks similar to original exhausts anyway.

arn't krupps a well known and respected heavy-industry steel producer going back to w.w.2 at least?
markus_74
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Post Fri Jun 10, 2016 1:50 am

I still confuse if the second has catalytic? And the first without catalytic?
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biffer
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Post Fri Jun 10, 2016 9:28 am

i think both exhausts do not have catalysts.
markus_74
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Post Fri Jun 10, 2016 12:44 pm

Does the first one is for 323i and second is for 325i?

And does the sound between boysen and eberspaecher is same?
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biffer
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Post Fri Jun 10, 2016 6:03 pm

first one-don't know i'm afraid.

second one does look like a 325 one.

the sound of the 2 exhausts should be similar.
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paultv
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Post Fri Jun 10, 2016 6:10 pm

I've got the second one on my cabby - no cat - seriously solid.

I guess you checked what your car has: down-pipes, then center box with long pipes at tail end, then back box with short pipes both ends?

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markus_74
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Post Sat Jun 11, 2016 1:04 pm

Sorry, my car is converted from m40 so I don't know the original exhaust.

Also does rear back exhaust between catalyst and no cat is same? Or different?