Muffler inlet pipe diameter?

Fireflyer239 · 07-23-2010, 07:42 PM

Okay, tried searching threads with no luck...can anyone tell me what the outside diameter of the stock 135 muffler inlet pipe is? I am speaking of the short, straight section of angled pipe just prior to muffler entry. This is where the Remus muffler attaches to the stock system, and I'm comparing pipe outside diameter at that specific point between 128 and 135 because I will be using it on my 128 and want to know if any adaptation will be neccesary. 128's OD at that point is 2.5". Thanks all.

techS54 · 07-24-2010, 10:11 AM

Right at the connection to the muffler mine measures 2.770" or just over 2 3/4"

07-23-2010, 07:42 PM	#1
Fireflyer239 First Lieutenant 19 Rep 349 Posts Drives: BMW, Jeep, Ducati & Harley Join Date: Jul 2009 Location: New Haven, CT iTrader: (0)	Muffler inlet pipe diameter? Okay, tried searching threads with no luck...can anyone tell me what the outside diameter of the stock 135 muffler inlet pipe is? I am speaking of the short, straight section of angled pipe just prior to muffler entry. This is where the Remus muffler attaches to the stock system, and I'm comparing pipe outside diameter at that specific point between 128 and 135 because I will be using it on my 128 and want to know if any adaptation will be neccesary. 128's OD at that point is 2.5". Thanks all. Attached Images Last edited by Fireflyer239; 07-23-2010 at 09:24 PM..
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07-24-2010, 10:11 AM	#2
techS54 Private 3 Rep 61 Posts Drives: 09' 135i Join Date: Sep 2006 Location: so-cal iTrader: (0)	Right at the connection to the muffler mine measures 2.770" or just over 2 3/4"
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