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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > 2012-2019 BMW 3 and 4-Series Forums > General F30 Sedan / F32 Coupe / F36 Gran Coupe Forum > 428i to 435i muffler conversion
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      03-29-2017, 05:52 PM   #1
dst86
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I did a lot of research and it didn't seen like all this info was available on one thread so I decided to make a thread to clarify all the questions I had before doing this upgrade.

Just like others here i could not stand the one side exhaust so i went ahead and purchased a 335i exhaust. Just to let others know that I purchased a 335i exhaust and put it on my 428i with no problems. I believe any x35i exhaust will fit with a 428i with no problems.

Here are the links I used to purchase the defuser & exhaust. Once the install was complete I put the car in sports mode and gave it a couple of hard revs so the left exhaust valve would open up. I disconnected the wire and now both exhaust are open at all times.

http://www.ebay.com/itm/301755370619...%3AMEBIDX%3AIT

http://www.ebay.com/itm/232265702653...%3AMEBIDX%3AIT.

Took it to a local muffler shop and had them installed for $90.00. They did a great job with the alignment.



So in total i spent a little over $600 to get this done.










Last edited by dst86; 03-30-2017 at 10:25 AM..
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      03-29-2017, 06:56 PM   #2
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I've got an M235 exhaust for sale for $250 if anyone is interested PM me. Under 10k miles on it perfect condition
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