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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20, N26, B46, B48 Turbo Engine / Drivetrain / Exhaust Modifications > Stock F30: Burbles, Burbles, Burbles!
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      06-20-2019, 11:25 AM   #1
brianpalvarez
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Cool Stock F30: Burbles, Burbles, Burbles!

F30 Fam,
It has been 2-3 months since I chopped my muffler and It took me a while to discover that I get BURBLES in ECO-PRO!!. Due to the low RMPs, it triggers some subtle, but noticeable BURBLES! I definitely make an entrance. Check it out!

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      06-20-2019, 06:45 PM   #2
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DSC off gives best burbles,

And I hope you recover from whatever procedure you had done to your ears, looks painful. I imagine it was caused by the bad drone of a muffler delete, i had it too and couldn't live with it after 2 months.
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      06-20-2019, 09:16 PM   #3
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Offs mate
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      06-21-2019, 07:02 AM   #4
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If this gets you excited wait until you get your hands on BM3
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      06-21-2019, 07:05 AM   #5
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Exactly
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      06-24-2019, 10:19 AM   #6
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Quote:
Originally Posted by RMachuca3d View Post
DSC off gives best burbles,

And I hope you recover from whatever procedure you had done to your ears, looks painful. I imagine it was caused by the bad drone of a muffler delete, i had it too and couldn't live with it after 2 months.
I am on the search for another resonator, lol The drone is annoying
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      06-24-2019, 10:20 AM   #7
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Originally Posted by rjdnyy224 View Post
If this gets you excited wait until you get your hands on BM3
If cops don't pull me over in Cali lol
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      06-24-2019, 11:56 AM   #8
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You should have just left your exhaust alone and added an e-cutout lol.
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      06-24-2019, 01:15 PM   #9
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i did a resonator delete first.. didnt do much so i did the muffler next.. i havent messed with it in eco pro mode.. but i get gun shot pops and burbles in sport and sport+ mode with both deleted..

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      06-24-2019, 02:26 PM   #10
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Quote:
Originally Posted by CandyRedRC46 View Post
You should have just left your exhaust alone and added an e-cutout lol.
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Originally Posted by CandyRedRC46 View Post
You should have just left your exhaust alone and added an e-cutout lol.
Isn't that the easiest solution to the "3" pipe debate?" For a tuned 320i
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      06-24-2019, 05:26 PM   #11
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Originally Posted by floridaorange View Post
Isn't that the easiest solution to the "3" pipe debate?" For a tuned 320i
this is great! Wow, I might do a resonator delete soon then. I don't get big pops like that with just the muffler delete
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      06-25-2019, 08:29 AM   #12
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Quote:
Originally Posted by floridaorange View Post
Isn't that the easiest solution to the "3" pipe debate?" For a tuned 320i
Depending on where you put the cut out, it could be. If you have a 320i, you could get a catless down pipe and weld a cut out at the down pipe to cat back connection. That way you can bypass the entire small 320i 2.5" exhaust.

For me, I already have a full 3" exhaust and I'm not a "mad pops an bangs gunshots bro burble burble bro", so I would put the cut out in between my resonator and rear muffler. So when the cutout is open, its still passing through the resonator and will have a nice tone. It would just be a little louder and have some drone, due to bypassing the rear muffler.
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      06-25-2019, 08:36 PM   #13
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[QUOTE=CandyRedRC46;24, you could get a catless down pipe and weld a cut out at the down pipe to cat back connection. That way you can bypass the entire small 320i 2.5" exhaust. [/QUOTE]

That's what I was thinking 👍.
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      06-26-2019, 11:15 AM   #14
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Quote:
Originally Posted by floridaorange View Post
That's what I was thinking 👍.
Go for it, but be prepared, open downpipe will be ungodly loud. For me it was unusably loud, when I drove to the muffler shop open front pipe (only catless downpipe and supersprint front pipe attached, no resonator pipe, rear pipe or axle back attached). I didn't have the cojones to do any hard pulls until having the rest of the exhaust welded on. It literally sounded like it was going to shake the car apart every time it got into boost. Thats why for me, locating the cutout between the resonator and muffler makes more sense.
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      06-26-2019, 02:03 PM   #15
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I won't do that then.... I've driven in my friends M3 with the exhaust removed and I remember the sound, anything close to that is way too loud 😂
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