Performance Exhaust

huatian · 10-08-2014, 09:37 PM

Has anyone installed the BMW performance exhaust for their car? Does it improve performance in anyway or is it more just nice looking / sounding add on? Maybe I'm getting deaf, but to be honest I don't really hear a difference (at least on videos).

parky1215 · 10-08-2014, 09:50 PM

No power gain. Stock exhaust is pretty much straight pipe muffler when valve is open.
You get some hp (5-8) for removing secondary cats.
But bmw performance exhaust does not remove them.

Stevens21234 · 10-08-2014, 09:54 PM

Sounds louder to me upon start up. Got it installed about a month ago:

View post on imgur.com

huatian · 10-08-2014, 10:00 PM

It looks great, like the CF tips. Are the tips extra on top of the cost of the exhaust?

04RC51 · 10-08-2014, 10:08 PM

Haven't seen any threads on the MPE? This is a first.

F80JMcD · 10-08-2014, 10:08 PM

Quote:

Originally Posted by huatian

It looks great, like the CF tips. Are the tips extra on top of the cost of the exhaust?

Yes, CF tips are an additional $1,300.

parky1215 · 10-08-2014, 10:08 PM

Tips are additional cost. Something like $800 for titanium and $1100 for cf tips.

huatian · 10-08-2014, 10:13 PM

To bad they can't just put on the performance exhaust at the factory for what ever the additional charge would be vs selling you another one. What you supposed to do with the old one? I have enough unused junk the house.

Stevens21234 · 10-08-2014, 10:17 PM

you can ask the dealer to trash the stock version

NorCal f80 · 10-08-2014, 10:36 PM

RPI is claiming +32whp. Probably because it's removing cats it looks like.

http://f80.bimmerpost.com/forums/sho....php?t=1039312

dmk08 · 10-09-2014, 07:41 AM

Quote:

Originally Posted by huatian

To bad they can't just put on the performance exhaust at the factory for what ever the additional charge would be vs selling you another one. What you supposed to do with the old one? I have enough unused junk the house.

You can have it dealer installed at delivery and they will gladly keep your old system. lol

dmk08 · 10-09-2014, 07:44 AM

Quote:

Originally Posted by F80JMcD

Yes, CF tips are an additional $1,300.

They are really like $250 more than the other tips. Doesn't come with any by default.

huatian · 10-09-2014, 11:05 AM

i would need to hear it in person to make a decision; even if it was something I wanted to do, I'd use the current exhaust for a year or so then change it. That way I don't feel so bad in wasting a perfectly good exhaust. It's not like its a cheap exhaust. When the smoke clears the cost (exhaust, tips, installation) its could hover near 8-10% of the total car cost.

Stevens21234 · 10-09-2014, 11:19 AM

it was 5k thereabouts for all costs (parts and install). About 5% of the cost of the car due to taxes and fully loaded options and warranties.

parky1215 · 10-09-2014, 11:36 AM

Quote:

Originally Posted by dwin_sd

RPI is claiming +32whp. Probably because it's removing cats it looks like.

http://f80.bimmerpost.com/forums/sho....php?t=1039312

That's false advertising.
There is no way M3/M4's HP with stock exhaust will fall like that at top end.
They did something wrong with dyno when dyno-ing car with stock exhaust.
Actual HP gain from their exhaust will most likely be like 5 hp.

This is properly dyno stock M4 power graph.

10-08-2014, 09:37 PM	#1
huatian Second Lieutenant 73 Rep 240 Posts Drives: SS M4 Join Date: Oct 2014 Location: NJ iTrader: (0)	Performance Exhaust Has anyone installed the BMW performance exhaust for their car? Does it improve performance in anyway or is it more just nice looking / sounding add on? Maybe I'm getting deaf, but to be honest I don't really hear a difference (at least on videos).
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10-08-2014, 09:50 PM	#2
parky1215 Lieutenant Colonel 561 Rep 1,979 Posts Drives: F90 M5C \| G06 X6 M60i Join Date: Nov 2010 Location: Rancho Cucamonga, CA iTrader: (13)	No power gain. Stock exhaust is pretty much straight pipe muffler when valve is open. You get some hp (5-8) for removing secondary cats. But bmw performance exhaust does not remove them.
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10-08-2014, 09:54 PM	#3
Stevens21234 Lieutenant 114 Rep 524 Posts Drives: F80 + 991.1 GT3 Join Date: Mar 2014 Location: MD iTrader: (0)	Sounds louder to me upon start up. Got it installed about a month ago: View post on imgur.com View post on imgur.com
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10-08-2014, 10:00 PM	#4
huatian Second Lieutenant 73 Rep 240 Posts Drives: SS M4 Join Date: Oct 2014 Location: NJ iTrader: (0)	It looks great, like the CF tips. Are the tips extra on top of the cost of the exhaust?
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10-08-2014, 10:08 PM	#5
04RC51 Large Member 951 Rep 1,749 Posts Drives: E92 M3, F82 M4 Join Date: May 2008 Location: NYC iTrader: (1)	Haven't seen any threads on the MPE? This is a first. __________________ 2008 E92 M3 (Engine swap completed), 2015 F82 M4
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10-08-2014, 10:13 PM	#8
huatian Second Lieutenant 73 Rep 240 Posts Drives: SS M4 Join Date: Oct 2014 Location: NJ iTrader: (0)	To bad they can't just put on the performance exhaust at the factory for what ever the additional charge would be vs selling you another one. What you supposed to do with the old one? I have enough unused junk the house.
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10-08-2014, 10:17 PM	#9
Stevens21234 Lieutenant 114 Rep 524 Posts Drives: F80 + 991.1 GT3 Join Date: Mar 2014 Location: MD iTrader: (0)	you can ask the dealer to trash the stock version
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10-08-2014, 10:36 PM	#10
NorCal f80 Lieutenant Colonel 346 Rep 1,656 Posts Drives: M3 Join Date: Apr 2014 Location: Nor Cal iTrader: (0)	RPI is claiming +32whp. Probably because it's removing cats it looks like. http://f80.bimmerpost.com/forums/sho....php?t=1039312
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10-09-2014, 11:05 AM	#13
huatian Second Lieutenant 73 Rep 240 Posts Drives: SS M4 Join Date: Oct 2014 Location: NJ iTrader: (0)	i would need to hear it in person to make a decision; even if it was something I wanted to do, I'd use the current exhaust for a year or so then change it. That way I don't feel so bad in wasting a perfectly good exhaust. It's not like its a cheap exhaust. When the smoke clears the cost (exhaust, tips, installation) its could hover near 8-10% of the total car cost.
	Appreciate 0 Quote

10-09-2014, 11:19 AM	#14
Stevens21234 Lieutenant 114 Rep 524 Posts Drives: F80 + 991.1 GT3 Join Date: Mar 2014 Location: MD iTrader: (0)	it was 5k thereabouts for all costs (parts and install). About 5% of the cost of the car due to taxes and fully loaded options and warranties.
	Appreciate 0 Quote