04-10-2021, 06:36 PM | #1 |
2021 X5 M50i
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2021 M50i Exhaust
I feel the 21' exhaust is quiet for a V8. I know people are removing a fuse to keep the flaps open. I guess the 21' model won't stay open in sport plus, you need to be driving over 40mph
Any other options to improve exhaust note. I drive a lot of highway for work, so don't want any drone.
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04-11-2021, 08:54 AM | #2 |
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The flaps are active always yes, basically open when you are on throttle and closed when cruising/idling.
If you pull the plugs when they are open, they will stay open. I just used BimmerLink to open them and then unplugged. I ran that for a bit and didn't really notice a big difference. Also consider there is a significant amount of sound deadening in the vehicle, it's much louder outside than you would think. I noticed when i had the fuse box cover off after i installed my hitch it sounded much louder. I have a 50i with M-Sport exhaust, which is more almost the same as m50i. I've also been looking at options trying to figure out what can be done. Dahler has an exhaust that sounds really good, with manual control of flaps, but it's $5k. |
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04-11-2021, 11:12 AM | #3 | |
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04-29-2021, 04:01 AM | #5 |
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Permanently opening the exhaust valves doesn't do much
Both US and Euro spec V8s have resonators. Euro spec also has OPFs in the exhaust. |
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05-01-2021, 08:01 AM | #6 |
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Wow I found the perfect forum for my question.
I'm looking for a little more exhaust sound, no drone. Anyone try this in US? central resonator and secondary cat then have them cut out and a straight pipe inserted in their place. |
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hunternight544.00 |
05-01-2021, 06:53 PM | #7 |
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Do others think this mod is worth it? I'm reading that opening the valves doesn't affect the sound much.
Debating on if I should purchase the bimmerLink app.
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05-02-2021, 08:26 AM | #9 |
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Yup, that they do. My 50i is the same, sounds amazing. That's a bit of trickery with engine tuning to get the cats to warm up quicker. Sadly won't sound like that once they are warmed up.
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05-02-2021, 08:38 AM | #10 |
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06-16-2021, 03:59 PM | #12 | |
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I haven’t found much on folks using other mufflers but it is an M performance exhaust so from a performance standpoint, not sure I’d want to give that up for sound. |
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06-18-2021, 05:15 PM | #14 |
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I received a quote from them a week after my inquiry. $4500 plus. Additionally, here is the kicker, they don’t have a company who can ship it on the palette it comes with. I would have to find my own solution for pickup and delivery from them.
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06-18-2021, 05:16 PM | #15 |
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Ouch and double-ouch. $4500 is pretty darn steep for an exhaust.
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06-21-2021, 09:29 AM | #17 |
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Get the resonator removed and replace with an X pipe. Any muffler shop should be able to do this.
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hunternight544.00 |
06-21-2021, 10:35 AM | #18 | |
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They can ship but the recipient must be a business for a palette. Seems easy enough if you want delivery to a muffler shop for install. That said, shipping won’t be cheap. They have a drive by clip and will post it at some point. |
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06-23-2021, 10:41 AM | #19 |
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06-29-2021, 07:43 AM | #20 |
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07-29-2021, 03:26 PM | #21 | |
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08-01-2021, 12:36 PM | #22 | |
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It sounded great at start up and the I got on the throttle. But normal driving had a lot of drone, my wife hated that, I was ok with it. |
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