09-20-2021, 11:16 AM | #1 |
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2021 M340 - Want some sound
Any recommendations on what I should do to give this thing some sound when I rip it? My friends like how it sounds but I want it to have a little more presence. It's a lease so I don't want to do anything crazy, but I can't justify spending 3k for the MPE exhaust (dealer said it's 2500 for parts, 500 for labor..) for just sound haha. I also don't want it to be annoyingly loud.
Any suggestions? JB4? Downpipe? MPE? Do I have any other cheaper options if it's just for sound? I wouldn't mind spending the 2k if I had some sort of performance boost on the MPE. Really wish I knew the 21's were much quieter than the 20's before I bought. Appreciate any suggestions. |
09-20-2021, 11:53 AM | #2 | |
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And welcome to the forum - you've posted this in the F30 section (the 3 series prior to your M340) - you'll want to repost in the G20 in the section. That said while I am here - the M340 already has a dual non resonated exhaust (twin pipes from downpipe to muffler without resonators) sooo....I would suggest a catted or cattless Downpipe running through the stock muffler - thats what I am doing and it's just about perfect Anyhoo here's a link to section of the forum you'll want to post in https://g20.bimmerpost.com/forums/fo...play.php?f=777 |
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09-20-2021, 01:58 PM | #3 | |
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If you're looking to impress when you start the car and idle, a DP will do that. If you're looking for something crazy loud with crackles and pops and bangs, you won't be satisfied. But it is a night and day difference after I swapped the DP.
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2018 BMW 340i GT | BMS Intake | Autowerke Catted DP | MHD E40 Mix Stage 2+ Tune | FX-150 HPFP
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09-20-2021, 08:34 PM | #4 | ||
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2016 340i THP stage 2 - gone but not forgotten. |
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09-20-2021, 09:45 PM | #5 | |
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The Magnuson-Moss Warranty Act makes it illegal for companies to void a warranty or deny coverage under the warranty because an aftermarket or recycled part was used. They HAVE to prove that the aftermarket downpipe caused the failure.
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2018 BMW 340i GT | BMS Intake | Autowerke Catted DP | MHD E40 Mix Stage 2+ Tune | FX-150 HPFP
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09-20-2021, 10:52 PM | #6 | ||
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09-21-2021, 08:28 AM | #7 | |
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09-21-2021, 09:58 PM | #8 | |
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10-24-2021, 01:42 AM | #9 | ||
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10-25-2021, 04:34 PM | #10 |
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The muffler delete sounds SO bad. There are a bunch of guys in my neighborhood that have done it, and hello 1995 'ricer' Civic sounding BMW. I didn't realize that a BMW could have such a nice farting sound when doing mid throttle acceleration.
Since it's a lease, you don't want to be cutting off the muffler unless you want to risk paying for a new cat back when it comes back from lease. You can do the MPE yourself which should be fine though. It does involve cutting the midpipe before the muffler, and then just bolts on. If you are handy, it's an easy install in the driveway. |
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10-27-2021, 11:50 PM | #11 | |
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I've done the muffler delete and I have a catless downpipe. as long as you keep the resonators on the stock exhaust system. it's louder but not over bearing. |
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10-28-2021, 07:26 AM | #12 |
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I'm not talking volume, I'm talking exhaust note. It sounds bad. EVERY vehicle that has the mufflers hacked off sounds bad. But heh, to each their own.
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