Inside of the M performance exhaust

Ateam · 10-07-2011, 11:07 PM

I am wondering what people think or speculate is in the m performance exhaust as far as design?

geneatals · 10-07-2011, 11:30 PM

^do you mean if it's the same as the stock exhaust with all that extra material that most remove when they do the oem exhaust mod/"can opener" mod

Stainless 45 · 10-08-2011, 12:00 AM

Based on the price I'm pretty sure the sound absorbing chambers are stuffed with $100 bills.

Krozi · 10-08-2011, 12:46 AM

Quote:

Originally Posted by geneatals

^do you mean if it's the same as the stock exhaust with all that extra material that most remove when they do the oem exhaust mod/"can opener" mod

Lol they have some apprentice kid in the back hacking up regular exhausts and putting a nice mark-up on 'em LOL

SchnellM3 · 10-08-2011, 07:33 AM

No one has done a can opener on this yet? lol

Is it harder to weld the inconel over the stainless OEM back shut?

PhillyNate · 10-08-2011, 08:53 AM

Nobody is rushing to cut open a $4k exhaust? What a surprise.

Digital.James · 10-08-2011, 11:08 AM

its made of iconel, which probably explains the price tag t

Muffnbluff · 10-08-2011, 11:51 AM

Quote:

Originally Posted by SchnellM3

No one has done a can opener on this yet? lol

Is it harder to weld the inconel over the stainless OEM back shut?

From wikipedia

Welding inconel alloys is difficult due to cracking and microstructural segregation of alloying elements in the heat affected zone. However, several alloys have been designed to overcome these problems. The most common welding methods are gas tungsten arc welding and electron beam welding.[

Denk · 10-08-2011, 12:11 PM

My guess is that it's packed with diamonds.

Really, I wouldn't be surprised if the inner's are about the same as the standard exhaust. No doubt the Inconel is huge in the sound equation.

UsurbrainM3 · 10-08-2011, 12:15 PM

Have you cut open your exhaust to figure out how the valves work?

Quote:

Originally Posted by SchnellM3

No one has done a can opener on this yet? lol

Is it harder to weld the inconel over the stainless OEM back shut?

Andrew_K_AZ · 10-08-2011, 01:08 PM

Perhaps some of the competing exhaust manufacturers should. Loud performance sound without any drone. Just a can opener to get to the magic sauce. Wonder if it will self destruct upon exposure

geneatals · 10-08-2011, 02:14 PM

it's filled with unicorns and rainbows...

Richbot · 10-08-2011, 03:38 PM

It's straight-through with a couple pipes coming off the straight-through pipe to provide resonance control. You can see right through to the tips from the inlets, it's a straight run of pipe.

Welding inconel isn't impossible with a tig but most shops aren't going to have the right material laying around and it's very thin metal probably not even 16 gauge from how it feels. I wouldn't do it without a get out of jail free signature from the owner

jonasaurus · 10-09-2011, 01:35 AM

Quote:

Originally Posted by geneatals

it's filled with unicorns and rainbows...

Lol

SchnellM3 · 10-09-2011, 09:51 AM

Quote:

Originally Posted by UsurbrainM3

Have you cut open your exhaust to figure out how the valves work?

Touche

I wonder whats different about the performance as well, aside from the material they both look the same..

Ateam · 10-09-2011, 03:21 PM

I am wondering how much of making it inconel was to keep people from cutting it open since it is much harder to weld properly? Nice cover to say its for lightweight but fact is titanium would have been lighter and cheaper but much easier to cut and weld.

So it is straight through? Basically a flowmaster glasspack is straight through so 4k for a piece of straight pipe is pretty ridiculous

Singletrack · 10-09-2011, 05:39 PM

Quote:

Originally Posted by Ateam

I am wondering how much of making it inconel was to keep people from cutting it open since it is much harder to weld properly? Nice cover to say its for lightweight but fact is titanium would have been lighter and cheaper but much easier to cut and weld.

So it is straight through? Basically a flowmaster glasspack is straight through so 4k for a piece of straight pipe is pretty ridiculous

Yah but flowmasters sound like a smashed bag of assholes. That's the difference. Magnaflow is as cheap as I would go on an exhaust if you are seriously considering just throwing some new cans on...

BMW puts their exhausts in a sound studio and tweaks them before they release them to the public so they will know precisely what they sound like. I mean you can dismiss this as overengineering, or acknowledge that it makes a difference. If you chose the former, then this exhaust is probably not for you.

I don't know many shops that are eager to weld titanium either.

Ateam · 10-09-2011, 09:47 PM

Quote:

Originally Posted by Singletrack

Yah but flowmasters sound like a smashed bag of assholes. That's the difference. Magnaflow is as cheap as I would go on an exhaust if you are seriously considering just throwing some new cans on...

BMW puts their exhausts in a sound studio and tweaks them before they release them to the public so they will know precisely what they sound like. I mean you can dismiss this as overengineering, or acknowledge that it makes a difference. If you chose the former, then this exhaust is probably not for you.

I don't know many shops that are eager to weld titanium either.

Can you post a link to info regarding the sound chamber they use? How do you know this

Singletrack · 10-09-2011, 11:15 PM

Quote:

Originally Posted by Ateam

Can you post a link to info regarding the sound chamber they use? How do you know this

They put all their cars in a sound studio - there was a documentary on a network just recently. Was more of an infomercial, but was still interesting. Can probably find some more info with a search for documentary or tv or something along those lines. Was a general documentary on BMW. I know they do this with the factory exhaust, but would be extremely surprised if they didn't do it with the 4k inconel one as well.

10-07-2011, 11:07 PM	#1
Ateam Banned 88 Rep 1,105 Posts Drives: M3 Join Date: Sep 2011 Location: USA iTrader: (0)	Inside of the M performance exhaust I am wondering what people think or speculate is in the m performance exhaust as far as design?
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10-07-2011, 11:30 PM	#2
geneatals Ninja 390 Rep 4,014 Posts Drives: 2019 530e Join Date: Dec 2007 Location: So Cal (SFV) iTrader: (3)	^do you mean if it's the same as the stock exhaust with all that extra material that most remove when they do the oem exhaust mod/"can opener" mod __________________ 2019 AW G30 530e l ZPP l ZMP l ZDH Retired: 2016 F80 M3, 2012 E90 M3, 2008 535i
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10-08-2011, 12:00 AM	#3
Stainless 45 Captain 87 Rep 602 Posts Drives: Last of the V-8 Interceptors Join Date: Oct 2010 Location: Long Island, NY iTrader: (1)	Based on the price I'm pretty sure the sound absorbing chambers are stuffed with $100 bills. __________________ Blue Thunder -2011 LeMans Blue e92 DCT, ZCP, European Delivery. BPM Stage II. Dinan 3.45 Rear. Borla/Encore Innovation Exhaust, LUX Angel Eyes, Forgestar F14's, Turner road armor. "Last of the V-8 Interceptors, a real piece of history..."
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10-08-2011, 07:33 AM	#5
SchnellM3 Digger 207 Rep 2,619 Posts Drives: 03 E46 M3 Join Date: Jun 2009 Location: Pa iTrader: (5) Garage List 2003 BMW E46 M3 Tra ... [8.00] 2009 BMW E92 M3 [8.30] 2009 Yamaha R1 (FOR ... [9.50]	No one has done a can opener on this yet? lol Is it harder to weld the inconel over the stainless OEM back shut? __________________ 2009 E92 M3 /// Melbourne Red /// Fox Red /// M DKG Full Innotech Exhaust - DINAN Intake - IND Engine Bay Appearance - IND Hand Stitched Boot Covers - and much more....
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10-08-2011, 08:53 AM	#6
PhillyNate ENTHUSIAST 135 Rep 2,097 Posts Drives: 2010 Porsche Cayman Join Date: Apr 2011 Location: Philadelphia iTrader: (0) Garage List 2010 Porsche Cayman [0.00]	Nobody is rushing to cut open a $4k exhaust? What a surprise. __________________ "what I'm driving here...is an ending." Jeremy Clarkson 2010 Carrara White Porsche Cayman 6mt 2014 Whiteout Toyota GT-86 6mt(Sold 05/23/15) 2011 Alpine White BMW M3 6mt ZCP Coupe(forced retirement 06/06/14) 2008 Alpine White BMW 328i 6mt Coupe(retired 06/21/11)
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10-08-2011, 11:08 AM	#7
Digital.James Colonel 119 Rep 2,703 Posts Drives: GT4, Raptor.2, Tuono 1100F Join Date: Sep 2007 Location: NC iTrader: (7)	its made of iconel, which probably explains the price tag t
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10-08-2011, 12:11 PM	#9
Denk Brigadier General 1006 Rep 3,341 Posts Drives: 2021 X5M Join Date: May 2011 Location: PNW iTrader: (2)	My guess is that it's packed with diamonds. Really, I wouldn't be surprised if the inner's are about the same as the standard exhaust. No doubt the Inconel is huge in the sound equation.
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10-08-2011, 01:08 PM	#11
Andrew_K_AZ Secret Racer 4 Rep 68 Posts Drives: 2008 E92 M3 (AW/BLK) Join Date: Apr 2011 Location: Arizona iTrader: (0)	Perhaps some of the competing exhaust manufacturers should. Loud performance sound without any drone. Just a can opener to get to the magic sauce. Wonder if it will self destruct upon exposure __________________ 2008 E92 M3, Alpine White & Black Extended Leather, 6MT with all options. Slightly Moded: BMW M Performance Exhaust, Rear LCI Taillight Retrofit, Angel iBrights, MGP Aluminum Caliper Covers, H&R Springs, H&R Spacers (15mm F and 12.5mm R) with +1 tires, Aluminum Pedals, Black Gloss Front and Hood Grills, Alpine White Side Grills and front reflectors, Active Autowerke Green Performance Filter.
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10-08-2011, 02:14 PM	#12
geneatals Ninja 390 Rep 4,014 Posts Drives: 2019 530e Join Date: Dec 2007 Location: So Cal (SFV) iTrader: (3)	it's filled with unicorns and rainbows... __________________ 2019 AW G30 530e l ZPP l ZMP l ZDH Retired: 2016 F80 M3, 2012 E90 M3, 2008 535i
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10-08-2011, 03:38 PM	#13
Richbot Major General 2760 Rep 5,483 Posts Drives: Jerez Black E90 Join Date: Sep 2007 Location: STL iTrader: (5)	It's straight-through with a couple pipes coming off the straight-through pipe to provide resonance control. You can see right through to the tips from the inlets, it's a straight run of pipe. Welding inconel isn't impossible with a tig but most shops aren't going to have the right material laying around and it's very thin metal probably not even 16 gauge from how it feels. I wouldn't do it without a get out of jail free signature from the owner __________________
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10-09-2011, 03:21 PM	#16
Ateam Banned 88 Rep 1,105 Posts Drives: M3 Join Date: Sep 2011 Location: USA iTrader: (0)	I am wondering how much of making it inconel was to keep people from cutting it open since it is much harder to weld properly? Nice cover to say its for lightweight but fact is titanium would have been lighter and cheaper but much easier to cut and weld. So it is straight through? Basically a flowmaster glasspack is straight through so 4k for a piece of straight pipe is pretty ridiculous
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