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  #1  
Old 02-07-2020, 04:35 PM
n20driver n20driver is offline
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Dual Exhaust for a 320i

I have a 2018 320i and would like to add a matching exhaust to the right side. Does anyone know if simply replacing the muffler with a 340i muffler would accomplish this? And if not, has anyone converted the 320i exhaust system from single to dual exhaust. It is more the appearance I am after however any resulting performance improvement would be OK as well.
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Old 02-07-2020, 10:14 PM
Hookster57 Hookster57 is offline
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Old 02-07-2020, 10:31 PM
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Dave 20T Dave 20T is offline
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Conversion would be more extensive then just to replace the exhaust. The rear bumper skin is different. Even the red rear reflectors on the lower bumper are different. If one is handy, it might be simpler to try to cut into the rear bumper then weld a fake exhaust (exhaust tip).

I like the single big 320i exhaust better than the small twin exhaust in the 328i/330i. If I had to do a modification, it would be to put an even bigger fat rear exhaust.

In the early to mid 2000's, it was a popular design to have no exhaust. The exhaust was hidden under the bumper and pointed down.
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Old 02-08-2020, 05:56 PM
12369 12369 is offline
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Do what i did lol, a muff delete + res and have the shop weld i believe its a magnaflow blue flame 3" tip. Look at my photo album and you can see what my tip looks like, i paid for everything including the tip $450... (Note: With the BM3 tune, and the custom burble settings and the TCU flash, this setup sounds awesome)

Last edited by DadzBmerN20; 02-08-2020 at 06:00 PM.
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Old 02-09-2020, 07:25 AM
n20driver n20driver is offline
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Thanks. How do I see your photo album?
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Old 02-09-2020, 08:13 AM
12369 12369 is offline
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Originally Posted by n20driver View Post
Thanks. How do I see your photo album?
Not sure, but i added your name on my contact list. I will upload the pic here and hopefully it goes thru, the other pic is the shop chopping off my stock suitcase lol..
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Old 02-09-2020, 11:05 AM
n20driver n20driver is offline
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Thanks. Yes, these two pictures came thru.
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Old 02-22-2020, 05:43 PM
12369 12369 is offline
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Hey if anybody wants to hear a sample sound of my exhaust that is now tuned with BM3 - Stage 1 on 91 stock tune, i think she sounds pretty decent, can even hear the pop at the last part..

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