How to determine if downpipe/midpipes are aftermarket?

idiot · 05-24-2019, 01:29 AM

Purchased a used M4 recently which came with an Akrapovic catback. How can I determine if the downpipe or midpipes is aftermarket, are there any obvious signs, do the OEM pipes have any obvious markings?

Thanks

4everkidd · 05-26-2019, 02:45 PM

Well your user name makes sense...

MR_X · 05-26-2019, 04:47 PM

Here is a good reference between stock and aftermarket downpipes

http://buildraceparty.com/bmw-m3m4-d...a-motorsports/

Here is a stock midpipe. Pretty sure you don’t have that one.
https://www.ebay.com/itm/2015-2019-B...-/143134649554

gatorfast · 05-26-2019, 04:55 PM

Quote:

Originally Posted by 4everkidd

Well your user name makes sense...

Haha brutal

mike@x-ph.com · 06-03-2019, 11:49 PM

Send me a picture OP and i can help

Quote:

Originally Posted by 4everkidd

Well your user name makes sense...

05-24-2019, 01:29 AM	#1
idiot New Member 5 Rep 21 Posts Drives: BMW M4 Join Date: May 2019 Location: Sydney iTrader: (0)	How to determine if downpipe/midpipes are aftermarket? Purchased a used M4 recently which came with an Akrapovic catback. How can I determine if the downpipe or midpipes is aftermarket, are there any obvious signs, do the OEM pipes have any obvious markings? Thanks
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05-26-2019, 02:45 PM	#2
4everkidd Major 646 Rep 1,336 Posts Drives: F80 AY M3 Join Date: Apr 2016 Location: Calgary iTrader: (1)	Well your user name makes sense...
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05-26-2019, 04:47 PM	#3
MR_X Old guy 306 Rep 266 Posts Drives: tricycle Join Date: Dec 2009 Location: Austin, Tx iTrader: (0)	Here is a good reference between stock and aftermarket downpipes http://buildraceparty.com/bmw-m3m4-d...a-motorsports/ Here is a stock midpipe. Pretty sure you don’t have that one. https://www.ebay.com/itm/2015-2019-B...-/143134649554
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