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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > 2012-2019 BMW 3 and 4-Series Forums > Photo, Video, Media Gallery, Journals > Possible to modify 428i exhaust to dual pipe?
Steve Thomas BMW
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      03-03-2015, 10:24 PM   #1
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Possible to modify 428i exhaust to dual pipe?

Instead of getting a 335/435 exhaust, I was wondering if one of the twin pipes could be cut off and welded on to the right side of muffler so I can get the 435 M Performance diffuser.
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      03-03-2015, 10:32 PM   #2
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Yes it is! I did it on mine, but you do not just throw another pipe on the other side, you buy the 35i muffler.

Right now I have the stock 35i diffusor but my M Performance diffusor is coming tomorrow!!



Check my build thread for updates, I should have the diffusor on this weekend.
http://f30.bimmerpost.com/forums/sho....php?t=1090357
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Mods (so far): 435i Exhaust Conversion, MPerf Diffuser, MPerf Black Grills, BMS Stage 1, Coding
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      03-04-2015, 01:31 PM   #3
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It can be done but it has to be done properly or else it will not sound or look good.
It might be a better choice to get a quad remus 328 exhaust and a nice quad diffuser.
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