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2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications M Performance mufflers size (modding to fit M5 diffuser)
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      12-18-2012, 08:21 PM   #1
robbylou
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M Performance mufflers size (modding to fit M5 diffuser)

Does anyone have an idea of the sizes of the M performance mufflers in relation to the stock ones? I was wondering whether they would be sufficiently smaller to adjust them in to fit the M5 diffuser (after adding some quad tips). Currently sporting the M5 diffuser with the stock 535 exhaust which fits (albeit a bit empty looking) in case anyone was wondering.

Thanks in advance
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      01-03-2013, 01:42 PM   #2
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can you post a picture of how the rear looks right now with the m diffusor and stock tips?
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      01-03-2013, 08:49 PM   #3
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      01-03-2013, 09:02 PM   #4
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Robby it would still look empty. I would think that if you are looking for a change in sound switching to the M exhaust would make sense. If this is purely a cosmetic upgrade you are looking for you could easily convert the tips to quads on youur current setup by having a muffler shop cut out your tips and install a Y tip dual exits on both sides. This will fix your space issue. You could do that to the M exhaust too if you want...
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      01-04-2013, 03:18 PM   #5
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Thanks for the reply- Yes my idea was to install the m-performance exhaust with the Y-tip quad set up. I was thinking that if the mufflers are huge like the stock ones, i may not have the space to maneuver them in a way that fits the diffusor though. I suppose maybe a muffler shop could tell me if the stock ones could be reworked to fit and if that works then the m-performance should work too. my hope was the m-performance would be smaller, more like the M5 size, but i dont think it is the case.
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      01-04-2013, 06:21 PM   #6
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Its actually slightly bigger (by 0.5")

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      01-05-2013, 07:09 PM   #7
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Ok thanks. Looks like I'll be going with the m5 mufflers. Hopefully within the next few weeks
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      01-06-2013, 12:30 AM   #8
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Good luck and post pics when you're done. Where are you getting it from if you dont mind me asking? I too have a 535..

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