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      01-16-2017, 09:32 PM   #1
KD07
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335 & 340 exhaust compatibility

Does anyone know for sure if there are any or all parts of the exhaust from a 335i that will fit the 340i? Obviously the downpipe will be different, but any chance anyone has confirmed that any piping from the cat - back is the same? Would an axle back or midpipe off a 335 fit a 340? Assuming both were F30 of course.
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      01-17-2017, 06:17 PM   #2
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Most aftermarket exhausts fit on both
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      01-18-2017, 10:11 PM   #3
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Quote:
Originally Posted by mike@x-ph.com View Post
Most aftermarket exhausts fit on both
Really?

EDIT:

N55 335 vs 340, what are the differences between them besides the dp?
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      01-18-2017, 10:25 PM   #4
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I'm wondering if the 340i/440i MPE exhaust kit will fit the 335i/435i (the later models with the larger downpipe)
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      01-19-2017, 12:33 AM   #5
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Quote:
Originally Posted by SingleturboVert View Post
Really?

EDIT:

N55 335 vs 340, what are the differences between them besides the dp?
Different engine for a start ... And yes really most exhausts fit both cars
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      01-19-2017, 02:15 PM   #6
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I tried re-using the MPE off of my 2013 335xi on my 2017 340xi but didn't for various reasons and I wondered the same thing. For one the piping on the 340 was a lot wider for just a clamp to connect both of them, the 340 exhaust was significantly smaller in width. I was going to have a shop work something and weld them together but a lot of people told me to just get the "right one" due to back pressure.
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      01-19-2017, 04:31 PM   #7
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I think the valve actuation system is different too... electric vs pneumatic but I could be wrong
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      01-19-2017, 09:02 PM   #8
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Quote:
Originally Posted by mike@x-ph.com View Post
Different engine for a start ... And yes really most exhausts fit both cars
Well right, I was referring to the exhaust plumbing, brackets, etc. Sounds like most of that is the same then, that is good to know.
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      01-23-2017, 11:30 PM   #9
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Anyone know if the dinan free flow axle back exhaust for the F30 335i will fit on a 340i?
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