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      07-23-2015, 03:57 AM   #1
AUSf22
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M235i Exhaust conversion on a 228i M-Sport

Hey all,

I was lucky enough to score a free stock m235i exhaust, so I thought I'd share the results with you guys. Big thanks to den525 for donating me his stock m235i exhaust! The conversion was done by Pete@Advan and Stuart@BMRAutowerkes, as always the customer service and quality of work was second to none.

As soon as I was gifted the 235 exhaust I bought the OEM m235i diffuser from BMW, the install was definitely not as easy as I thought it would be, the pipe connecting the muffler to the resonator was similar but it was not a straight forward cut and clamp so a bit of fiddling around was required to get the 235 muffler to line up as close to the existing 228 exhaust pipe. The exhaust hangers lined up perfectly so there was no modification required there, but as soon as the exhaust was on we noticed the driver side exhaust tip was hanging about 5mm further out then the left tip. Had to shave a couple mm off and the tips lined up perfectly! The exhaust was then welded on after the battery was disconnected.

Overall, it definitely changed the sound of the car, the bang on the upshift is now significantly louder and there is also a slight burble on the over-run which was not there with the original exhaust. It has also changed the look of the car dramatically so I'm extremely happy with that Also had the red reflectors painted black.







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      07-23-2015, 05:29 AM   #2
DR-JEKL
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looks good mate

With the badge delete everyone will think you have a 235i!
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      07-23-2015, 07:58 PM   #3
woosh
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keen to hear this crackle and pop ausy!
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      07-23-2015, 11:11 PM   #4
david.orr
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Quote:
Originally Posted by DR-JEKL View Post
looks good mate

With the badge delete everyone will think you have a 235i!
+1 nice, should have gone further with a MP diffuser
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      07-24-2015, 12:34 AM   #5
Knightelf
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2011 BMW 135i  [0.00]
Looking good, great to see you managed to get the conversion done!
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Current: 2014 F22 M235i Mineral Grey
Previous: 2011 E82 DCT 135i Space Grey

Build thread: http://www.2addicts.com/forums/showthread.php?t=1149793
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      07-24-2015, 03:31 AM   #6
im_dave
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Nice work! Are those the M performance SS tips?
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      07-24-2015, 04:36 AM   #7
AUSf22
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Quote:
Originally Posted by DR-JEKL View Post
looks good mate

With the badge delete everyone will think you have a 235i!
Haha yeah, just I don't have black exhaust tips and If they see me coming from behind them they should notice the foglights !
Quote:
Originally Posted by woosh View Post
keen to hear this crackle and pop ausy!
Soon wooshy
Quote:
Originally Posted by jaffa12 View Post
+1 nice, should have gone further with a MP diffuser
I definitely wanted the RW carbon, exotic tunings style carbon replica diffuser but not enough $$ ! Definitely getting a different diffuser later on but I'm most likely going to wrap the existing one with VVivid gloss carbon wrap.

Quote:
Originally Posted by Knightelf View Post
Looking good, great to see you managed to get the conversion done!
Thanks Knight, got extremely lucky with the muffler

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Originally Posted by im_dave View Post
Nice work! Are those the M performance SS tips?
Thanks, nah they aren't the M performance SS tips unfortunately! I believe they are 435i chrome tips Dave!
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      05-15-2018, 12:31 PM   #8
stratatak7
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I just went through with the very same conversion and I am thrilled with the results. I didn't want something too loud but I didn't expect the burbles on upshifts or low RPM. It was a very nice surprise! I mainly wanted to do the conversion for aesthetic purposes.

I had a muffler donor and paid $110 for a diffuser (shipped). My exhaust guy only charged $100 for the install, making my total cost $210.

The only thing the exhaust shop ran into was the mounts seem to be slightly shorter, so he performed a little bit of welding magic and now it sits perfectly.









Full album with before and after photos:
View post on imgur.com
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