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F87 M2 (2016 - current)
BMW will be unveiling the upcoming F87 M2 and this is the place to talk about it. Are you adding one of these to your garage?

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  #1  
Old 05-12-2019, 06:04 AM
Tbromley Tbromley is offline
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My M2 performance exhaust is too loud for me

Hello everyone, my first tech post. I bought a slightly used 2018 M2 and it came optioned with the performance exhaust. This is my 7th bmw. I think the M2 is a fantastic machine, plenty of power, amazing handling and most young folks would love the exhaust note. Unfortunately I'm not young at 69 and to me it is too loud and at 3000 rpms in 6th gear at 80 mph it's a drone - loud drone that even creates a vibrational buzz somewhere in the back seat area that I haven't been able to identify. But bottom line is I want to change it substantially. I don't believe , although I haven't been able to physically compare the stock M2 exhaust to the Performance Exhaust (PE). But from what I've heard on YouTube I don't think the stock exhaust is even going to reduce the note enough. So my question to this group is whether any of you think the stock M240 exhaust would actually harm the engine? I think it would be quiet enough. If it didn't effect the power output much or at all I think it might be the perfect solution for me. I don't want to sell the car because it's too loud. I love the car otherwise. If any of you know an engineer at bmw that could answer my question that I might contact, I would love to contact him or her by writing or whatever.
Thanks everyone - any helpful comments are welcome.
Tim
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Old 05-13-2019, 12:10 PM
CT Sean CT Sean is offline
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Stock M2 exhaust is actually pretty quiet inside in Comfort as well as all modes when ASD is deactivated (via coding or the bypass harness). I'd be willing to bet it would be easy to find someone willing to trade their stock exhaust for MPE with some cash thrown in.

Last edited by CT Sean; 05-13-2019 at 12:12 PM.
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Old 05-14-2019, 05:37 PM
Tbromley Tbromley is offline
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What is ASD?
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Old 05-15-2019, 04:23 AM
CT Sean CT Sean is offline
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Active Sound Design. Artificial exhaust noise play through the stereo system of the car. Makes it artificially louder in sport and sport plus.
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Old 05-21-2019, 08:38 AM
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BeemerGuy BeemerGuy is offline
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Hey Tim,

I had the same complaint when I first got my car. I have found (unless it's my imagination) that the car is a little less loud and sonorous as it has gotten more miles (now at 3500) on it. It's still too loud and that highway drone is maddening, but either it toned down or I'm just going deaf.

What?

I've done one long highway trip in the car, and I used earplugs for most of the journey. I also found that if I leave it in fifth gear, which puts the RPMS up around 3200+ when doing 75 MPH, it kills most of the resonance. Probably not great for fuel economy or long-term engine life, but when I was on that trip I was still in the break-in period, so I thought it would be good to occasionally alternate engine speed.

Also, research has indicated that it's not a direct swap between stock and PE, as there are differences in the exhaust plumbing, so it's not a straight muffler swap, but obviously anything can be done with enough time and money.

I would be interested to hear your results if you do go through with this.

I will admit though that on the track at high RPMs and heavy throttle application, when you open the valves on that ridiculous exhaust, it does sound glorious.

I might also suggest that you post on various "2" forums and see if you can find someone local who's taken off their 235 or 240 exhaust for an aftermarket unit and will sell it to you for cheap. Yes, I would presume that you might lose a few horsepower, but it's probably well worth the trade-off.
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Old 05-22-2019, 05:28 AM
CT Sean CT Sean is offline
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Originally Posted by BeemerGuy View Post
Hey Tim,

I had the same complaint when I first got my car...
MPE or stock? If stock, have you tried ASD disabled? I much prefer my stock exhaust with ASD disabled, I actually wouldn't mind it louder on occasion.
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Old 05-23-2019, 03:39 AM
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BeemerGuy BeemerGuy is offline
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Quote:
Originally Posted by CT Sean View Post
MPE or stock? If stock, have you tried ASD disabled? I much prefer my stock exhaust with ASD disabled, I actually wouldn't mind it louder on occasion.
MPE. Disabling asd makes little difference.
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Old 05-23-2019, 09:55 AM
CT Sean CT Sean is offline
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Originally Posted by BeemerGuy View Post
MPE. Disabling asd makes little difference.
that would make sense - I'd expect MPE to drown out ASD. What I'm suggesting to OP is to ditch the idea of figuring out how to fit a 235/240 exhaust and just get a stock exhaust and disable ASD. i don't find it at all loud with stock exhaust and no ASD
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Old 06-07-2019, 05:32 AM
jcarr343 jcarr343 is offline
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