MPerf Exhaust sounds best in Eco Pro?!

Chuckbuster · 02-20-2015, 05:43 PM

I've had the MPE installed for about two months now and really enjoy it, it adds just that extra bit of meatiness to the tone of the engine, nice little pops, etc.

However, when idling, winding down or with your foot down there is NO QUESTION that it is far louder when in Eco Pro.

Is this because the valve is open in Eco Pro?
Anyone else feel the same?

smithf80 · 02-20-2015, 06:01 PM

No, its because the valve is CLOSED in eco pro, more exhaust forced out of one pipe = better sound I suppose.

USC2000 · 02-20-2015, 09:00 PM

Yes, with the valve open the exhaust sounds louder.

Chuckbuster · 02-20-2015, 09:19 PM

Ummm...ok so with those two responses I'm
now more confused :S

smithf80 · 02-20-2015, 09:25 PM

Quote:

Originally Posted by Chuckbuster

Ummm...ok so with those two responses I'm
now more confused :S

Don't be. It sounds louder with the valve closed.

Quote:

Originally Posted by USC2000

Yes, with the valve open the exhaust sounds louder.

No, this is not so on the 28i MPE, its valve closed sounds louder.

KGB_123_99 · 02-20-2015, 10:34 PM

ECO PRO sounds better even with the stock exhaust. You can even make the 328i burble with the stock exhaust if you do it right in ECO PRO. I think the reason is that the wastegate dumps more exhaust and since it bypasses the turbo, it makes more noise.

focal · 02-21-2015, 06:50 AM

what's eco pro mode? my selector only moves up. We drive BMW's not prius's. I don't like the drone in normal mode so I'm always in sport.

KGB_123_99 · 02-22-2015, 09:25 AM

Quote:

Originally Posted by focal

what's eco pro mode? my selector only moves up. We drive BMW's not prius's. I don't like the drone in normal mode so I'm always in sport.

If it didn't belong on a BMW then it wouldn't be there...

Chuckbuster · 02-22-2015, 09:30 PM

A long shot, but anyone know if that wastegate setting can be coded?
If it's changing based on the drive mode selector it is feasible, right?

focal · 02-23-2015, 09:50 AM

Quote:

Originally Posted by KGB_123_99

If it didn't belong on a BMW then it wouldn't be there...

efficient dynamics and default "normal" mode are there to appease regulations. Driving past BMW's you'll know that throttle response should be in "sport".

The various modes really appease to a wider audience of drivers and in turn generate more sales. At least the option of having the car mimic past cars better is still there.

KGB_123_99 · 02-23-2015, 03:46 PM

Quote:

Originally Posted by focal

efficient dynamics and default "normal" mode are there to appease regulations. Driving past BMW's you'll know that throttle response should be in "sport".

The various modes really appease to a wider audience of drivers and in turn generate more sales. At least the option of having the car mimic past cars better is still there.

Why can't there be a right time and place for different modes? If I'm stuck in city traffic what's the point of staying in Sport mode?

DHP is the same thing. If I'm driving on Montreal roads, the comfort mode comes in handy

ThaiBruin · 02-23-2015, 06:41 PM

Perhaps it's an automatic transmission thing? I don't notice that huge of a difference in Eco Pro on my manual.

focal · 02-25-2015, 11:14 AM

Quote:

Originally Posted by KGB_123_99

Why can't there be a right time and place for different modes? If I'm stuck in city traffic what's the point of staying in Sport mode?

DHP is the same thing. If I'm driving on Montreal roads, the comfort mode comes in handy

agree choice is good for enthusiasts and non enthusiasts. I just like the computer to stay out of the driving equation as much as possible. I like my cars to be simplier. Efficiency is appreciated but not a factor in how I drive. It does irk me to have to switch to Sport at times when I'm trying to overtake someone and I was still in the default Comfort mode.

A manual transmission can override some of the different throttle responses in different modes. It's still easy to drive smoothly in Sport, even in traffic. You get used to the faster throttle response and prefer it.

kervanoglu · 02-26-2015, 06:06 AM

It is not about flap... I did a muffler delete and sound is still better in eco-pro.

The Cyber Claws · 05-27-2021, 06:13 PM

Quote:

Originally Posted by Chuckbuster

I've had the MPE installed for about two months now and really enjoy it, it adds just that extra bit of meatiness to the tone of the engine, nice little pops, etc.

However, when idling, winding down or with your foot down there is NO QUESTION that it is far louder when in Eco Pro.

Is this because the valve is open in Eco Pro?
Anyone else feel the same?

Yeah most definitely it sounds way better in Eco Pro... I even get nice pops when I lift my foot off the throttle.

x328x · 05-27-2021, 10:06 PM

I got a remus exhaust and the flap has been deleted. I still get better sound and burbles from eco, so its got nothing to do with the flap. I think its got something to do how the engine is reving at a given speed. It has to be or its something to do with how the engine is running on that eco map or throttle response or transmission map driving the revs

02-20-2015, 05:43 PM	#1
Chuckbuster Private First Class 29 Rep 170 Posts Drives: 2014 328i Estoril Blue Join Date: Mar 2014 Location: Sydney, Australia iTrader: (0) Garage List 2014 BMW 328i [10.00]	MPerf Exhaust sounds best in Eco Pro?! I've had the MPE installed for about two months now and really enjoy it, it adds just that extra bit of meatiness to the tone of the engine, nice little pops, etc. However, when idling, winding down or with your foot down there is NO QUESTION that it is far louder when in Eco Pro. Is this because the valve is open in Eco Pro? Anyone else feel the same?
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02-20-2015, 06:01 PM	#2
smithf80 Major General 2804 Rep 5,316 Posts Drives: G80 M3 6MT Join Date: Mar 2014 Location: Long Island, NY iTrader: (1) Garage List 2022 G20 330i [9.00] 2018 F80 M3 [9.75]	No, its because the valve is CLOSED in eco pro, more exhaust forced out of one pipe = better sound I suppose. __________________ Scott, Partner Insight Automotive Consulting Click HERE for all discounted BMW New Car Pricing Click HERE for all BMW In Stock Inventory Specials Call/Text: 516-416-5481 Email: scott@insightautoconsulting.com
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02-20-2015, 09:00 PM	#3
USC2000 Lieutenant Colonel 127 Rep 1,604 Posts Drives: F30 328i M Sport Join Date: Jul 2007 Location: El Paso, TX iTrader: (10)	Yes, with the valve open the exhaust sounds louder.
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02-20-2015, 09:19 PM	#4
Chuckbuster Private First Class 29 Rep 170 Posts Drives: 2014 328i Estoril Blue Join Date: Mar 2014 Location: Sydney, Australia iTrader: (0) Garage List 2014 BMW 328i [10.00]	Ummm...ok so with those two responses I'm now more confused :S
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02-20-2015, 10:34 PM	#6
KGB_123_99 Captain 404 Rep 962 Posts Drives: '17 330ix M-Sport, '09 528ix Join Date: Apr 2014 Location: Montreal, QC iTrader: (0)	ECO PRO sounds better even with the stock exhaust. You can even make the 328i burble with the stock exhaust if you do it right in ECO PRO. I think the reason is that the wastegate dumps more exhaust and since it bypasses the turbo, it makes more noise.
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02-21-2015, 06:50 AM	#7
focal Captain 67 Rep 639 Posts Drives: 328i 6MT w/ MPS & MPE Join Date: Dec 2013 Location: Toronto, Canada iTrader: (0)	what's eco pro mode? my selector only moves up. We drive BMW's not prius's. I don't like the drone in normal mode so I'm always in sport.
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02-22-2015, 09:30 PM	#9
Chuckbuster Private First Class 29 Rep 170 Posts Drives: 2014 328i Estoril Blue Join Date: Mar 2014 Location: Sydney, Australia iTrader: (0) Garage List 2014 BMW 328i [10.00]	A long shot, but anyone know if that wastegate setting can be coded? If it's changing based on the drive mode selector it is feasible, right?
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02-23-2015, 06:41 PM	#12
ThaiBruin Captain 171 Rep 688 Posts Drives: F10 535i M-Sport Join Date: Oct 2013 Location: Playa Vista, CA iTrader: (0)	Perhaps it's an automatic transmission thing? I don't notice that huge of a difference in Eco Pro on my manual. __________________ 2014 Carbon Black 535i M Sport - Bootmod3 / M Performance Exhaust / Carbon Graphite Vorsteiner V-FF 103 / KW V2 *Retired*- 2013 MG 328i Sport Line 6MT - BMS Stage 1 / M Performance exhaust / M Performance steering wheel / M Performance shift knob/boot
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02-26-2015, 06:06 AM	#14
kervanoglu New Member 6 Rep 28 Posts Drives: f30 328i Join Date: Apr 2014 Location: Turkey iTrader: (0)	It is not about flap... I did a muffler delete and sound is still better in eco-pro.
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05-27-2021, 10:06 PM	#16
x328x Captain 276 Rep 864 Posts Drives: 2014 328i M Sport Join Date: Sep 2014 Location: Vic iTrader: (0)	I got a remus exhaust and the flap has been deleted. I still get better sound and burbles from eco, so its got nothing to do with the flap. I think its got something to do how the engine is reving at a given speed. It has to be or its something to do with how the engine is running on that eco map or throttle response or transmission map driving the revs
	Appreciate 0 Quote