M240i Midpipe Question

F22santiago · 02-08-2018, 08:24 PM

Does anyone know if the midpipe section on an m240i is clamped or its welded? I cant seem to find definite answer. Some say its welded all the way. Ive also heard its clamped at both ends (after cat and before muffler) and now Im being told its only clamped after cat but welded after. Does anyone know for sure or have a diagram?

shundel · 02-08-2018, 10:36 PM

It's clamped after the cat and is one solid piece all the way to the back. You would need to cut at the dimple just before the muffler.

EDIT:
The above statement is applicable before any mods. After that, the midpipe would clamp at both ends. No fitment or leak issues to date in my experience though it did take some time to align properly

RotorOver · 02-09-2018, 12:11 PM

It’s clamped at both ends, but my shop recommended a weld on the exhaust end due to the design of the pipe fitment to ensure no leaks.

mike@x-ph.com · 02-21-2018, 04:48 PM

Clamped on the downpipe side and one piece all the way to the back

If you are only replacing midpipe and keeping everything the stock, you will need to cut it one one side and use clamps to reinstall the aftermarket mid

02-08-2018, 08:24 PM	#1
F22santiago Banned 48 Rep 190 Posts Drives: Estoril Blue 6 Speed M240i Join Date: Dec 2014 Location: New Jersey iTrader: (0)	M240i Midpipe Question Does anyone know if the midpipe section on an m240i is clamped or its welded? I cant seem to find definite answer. Some say its welded all the way. Ive also heard its clamped at both ends (after cat and before muffler) and now Im being told its only clamped after cat but welded after. Does anyone know for sure or have a diagram?
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02-08-2018, 10:36 PM	#2
shundel Enlisted Member 60 Rep 43 Posts Drives: 2017 M240i Join Date: Mar 2017 Location: Vancouver iTrader: (0)	It's clamped after the cat and is one solid piece all the way to the back. You would need to cut at the dimple just before the muffler. EDIT: The above statement is applicable before any mods. After that, the midpipe would clamp at both ends. No fitment or leak issues to date in my experience though it did take some time to align properly __________________ 6MT 2017 M240i Coupé : MW Metallic • 461M • Coral Red • Fineline Streamwood • Premium Package • Dinantronics Stage 1 Tune Last edited by shundel; 02-09-2018 at 04:22 PM.. Reason: Disambiguity
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02-09-2018, 12:11 PM	#3
RotorOver Newer 2er 296 Rep 474 Posts Drives: 2017 M240i (Sold) Join Date: Jun 2016 Location: Johns Creek, GA iTrader: (0) Garage List 2017 BMW M240i [10.00]	It’s clamped at both ends, but my shop recommended a weld on the exhaust end due to the design of the pipe fitment to ensure no leaks. __________________ 2017 BMW M240i (Sold) 2021 F-150 Raptor 2017 Porsche 718 Cayman S 2017 Audi Q5
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02-21-2018, 04:48 PM	#4
mike@x-ph.com Joint Chiefs of Staff 24082 Rep 190,597 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	Clamped on the downpipe side and one piece all the way to the back If you are only replacing midpipe and keeping everything the stock, you will need to cut it one one side and use clamps to reinstall the aftermarket mid __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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