M Performance Exhaust muffler power gains? Plus question on sound. |
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07-15-2014, 12:16 PM | #1 |
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M Performance Exhaust muffler power gains? Plus question on sound.
Are there any power gains to be expected from just changing out the stock M235i muffler to the M Performance version? Anyone every seen a dyno of one vs the other (maybe on other BMW cars?).
Also, with the "fake" engine/exhaust sound coming from the speakers in this car, does the sound (in the car, windows up) change at all with the M Performance exhaust or is it pretty isolated to the exterior and the inside sounds the same? |
07-15-2014, 01:32 PM | #5 |
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Blah. Then I guess I'll pass. I rarely ever drive with the windows down (did some test runs and prefer the sound with the windows up...with the wind noise and such, you barely hear the engine/exhaust anyway).
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07-15-2014, 02:43 PM | #6 |
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you can definately tell the sound difference once its broken in, and actually have a slight drone to it. i find it pretty satisfying at that sound level since im coming out of s2000 with loud exhausts..
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07-15-2014, 06:52 PM | #8 |
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07-15-2014, 10:35 PM | #9 |
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I actually kind of noticed a drone also.. thought it was just me.. hmm.
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04-06-2016, 09:32 PM | #13 | |
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04-06-2016, 09:49 PM | #14 |
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Since this thread was resurrected here. Same question I've been trying to figure out, not a whole lot of information I could find anywhere or my search game is lacking. I know the gains arent great with Dinan as a claimed 6hp, but one would think you would get something out of the MPE right? Anyone actually know of or seen a dyno on this?
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04-07-2016, 04:01 PM | #15 | |
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No gains with the exhaust, only downpipes |
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04-08-2016, 07:11 AM | #16 | |
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If you are looking for a cheap upgrade and only care about sound you could code it to sound like an m3. I have not done this, but have heard of others who have. |
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04-17-2016, 03:07 PM | #17 |
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another question on sound
i also have the MPE, sound is only coming up from one tip (the right one) at all times and the first times i floor it a whistling (not the turbo) occurs in first gear at 4000rpm+ and second gear, it is kind of annoying but once the car is warmed up it goes away.
is it normal?? what can i do to stop the whistle |
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04-17-2016, 06:13 PM | #18 |
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I have mpe and no whistle nor drone.
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04-23-2016, 09:01 AM | #19 |
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