330i Resonator Delete?

lakers2426 · 10-15-2020, 12:16 AM

Has anyone removed the resonator on a 330i? I would like to have more burbles/pops in my exhaust but I'm not exactly sure how this will sound or if there will be a drone. I saw some footage on youtube but nothing that shows the difference too clearly. Any input on if this mod is worth it? If anyone has done it can you post a video?

Don76 · 10-15-2020, 01:52 AM

Is your car an EU or US car?

In the EU, our cars (post 2019) have the dreaded OPF filter. I removed the OPF filter and the resonator by effectively having a straight pipe from the downpipe to the back box.

Even then, no pops.

I had to remap the ECU to create pops. I used BM3 which allows me to have pops in sport mode, but none in comfort.

10-15-2020, 12:16 AM	#1
lakers2426 New Member 11 Rep 17 Posts Drives: 2020 330i M Sport Join Date: Oct 2020 Location: Los Angeles iTrader: (0)	330i Resonator Delete? Has anyone removed the resonator on a 330i? I would like to have more burbles/pops in my exhaust but I'm not exactly sure how this will sound or if there will be a drone. I saw some footage on youtube but nothing that shows the difference too clearly. Any input on if this mod is worth it? If anyone has done it can you post a video?
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10-15-2020, 01:52 AM	#2
Don76 Second Lieutenant 171 Rep 258 Posts Drives: BMW 320i M-Sport Join Date: Apr 2020 Location: Scotland iTrader: (0)	Is your car an EU or US car? In the EU, our cars (post 2019) have the dreaded OPF filter. I removed the OPF filter and the resonator by effectively having a straight pipe from the downpipe to the back box. Even then, no pops. I had to remap the ECU to create pops. I used BM3 which allows me to have pops in sport mode, but none in comfort.
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