Exhaust Teaser

CO335D · 07-29-2015, 02:20 PM

What size are those tips out of curiosity?

melonbread · 07-29-2015, 02:20 PM

how does it sound?

iaknown · 07-29-2015, 05:05 PM

Quote:

Originally Posted by CO335D

What size are those tips out of curiosity?

3.5"

Quote:

Originally Posted by melonbread

how does it sound?

Trying to get sound clips up soon. But its a 335D with an aftermarket exhaust, so it sounds awesome

SLH350 · 07-29-2015, 08:54 PM

Excited for sound clips. Tip size looks perfect.

p27rpy · 07-29-2015, 10:39 PM

Wooooow. Sound clips, sound clips!

melonbread · 07-30-2015, 09:04 AM

Quote:

Originally Posted by iaknown

3.5"

Trying to get sound clips up soon. But its a 335D with an aftermarket exhaust, so it sounds awesome

I like it! even before i hear them...

briansjacobs · 07-30-2015, 11:15 PM

hmmmm, this is getting interesting

http://www.amazon.com/QTEC25-Electri.../dp/B003R2MSA8

BB_cuda · 07-31-2015, 09:19 AM

Hahaha. Banished one's D is the "model" testing out the prototype exhaust.

Notice how the hanger off the back of the transmission is still being used. The design has two little shelfs that the OEM black rubber foot bolts to. My shop couldn't do this. They used a standard hangar wended to the pipe and screwed it to the transmission cross member. This detail is very OEM. Kudos

texroad · 08-04-2015, 08:55 AM

Looks awesome can't wait.

sukutash · 08-07-2015, 05:37 AM

Anyone thinking of going single pipe all the way? would it be possible?

GaryE30 · 08-07-2015, 07:11 AM

Do we have a date confirmed yet?

Lexx.md · 08-09-2015, 09:42 AM

I would agree with fsd350 if it would be possible, i would like just to replace a midpipe with catalytic converter and keep the stock mufflers. It should be cheaper, and why would i replace what is working as i need it.

By midpipe i mean http://www.realoem.com/bmw/enUS/show...diagId=18_0815

And more than that, people here are asking for louder systems, i would want to keep my car as quiet as possible, even more than that, if it would be possible to have, i would replace this small resonator with something bigger to keep some sound inside

Should be not that hard to do, as it is a separate piece.

iaknown You are doing great job, these thoughts this is just something i wanted to share, so you would now other sales points.

Owen81 · 08-09-2015, 09:51 AM

The problem is the converter section is oval and would be difficult to just replace that piece

Lexx.md · 08-09-2015, 10:07 AM

But they exist, something like this one http://www.ebay.com/itm/131437437385 or maybe better quality.

Or even maybe better solution to have this one in the center, and two pipes to go to each rear muffler.
http://www.ebay.com/itm/191636100259

Anyway maybe the resonator works as well, i am not a pro, it is just my thoughts.

I am always trying to keep my car quiet and fast.

Owen81 · 08-09-2015, 10:23 AM

The pipe is oval, you can't just mate up a standard piece of pipe.

Look at the RealOEM diagram, see how it looks squished?

Lexx.md · 08-09-2015, 10:40 AM

Oh, i meant to use pipes what iaknown is doing, just to have a bigger central muffler option.

The OEM ones is not possible to match, so only open and take the stuff out of it.

e46mpwr · 08-09-2015, 01:14 PM

That exhaust system looks mighty nice. What are the performance gains/losses (looking for a dynochart) from it and how much of a weight savings is there over the stock exhaust system?

Yozh · 08-09-2015, 02:44 PM

Weight savings would be significant. The stock system is very heavy. Don't have the numbers...

iaknown · 08-09-2015, 08:49 PM

Quote:

Originally Posted by Owen81

The problem is the converter section is oval and would be difficult to just replace that piece

While some might be interested in this option my guess is it would just be a handful. Not worth putting into production to be honest. Plus, as mentioned, we are looking at non-standard components to make it happen

Quote:

Originally Posted by e46mpwr

That exhaust system looks mighty nice. What are the performance gains/losses (looking for a dynochart) from it and how much of a weight savings is there over the stock exhaust system?

As mentioned, the weight savings alone will be a big improvement. I'm sure we can get some weight figures in the near future.

As far as performance gains, I doubt they will be anything worth mentioning if we ever get a dyno comparison (which most likely won't happen). But with a clogged SCR, which is inevitable with any sort of tune, there will definitely be an improvement

kg4kdn · 08-11-2015, 03:54 PM

Quote:

Originally Posted by texroad

Looks awesome can't wait.

Me neither

briansjacobs · 08-11-2015, 04:04 PM

we all appreciate the update and the pics are awesome, but less typing and more welding. K thanx

BB_cuda · 08-11-2015, 07:23 PM

Iaknown has been working on this exhaust development for over a half year if not closer to a year. The fabrication people are working up the production details since the proto is done. I would expect we need to afford him respect and patience. Typing or not isn't going to speed the process that he is waiting for. Out

07-29-2015, 02:20 PM	#45
CO335D Second Lieutenant 24 Rep 217 Posts Drives: '11 335D Join Date: Oct 2014 Location: CO iTrader: (0)	What size are those tips out of curiosity?
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07-29-2015, 02:20 PM	#46
melonbread Private First Class 26 Rep 175 Posts Drives: Honda Join Date: Apr 2015 Location: Austin, TX iTrader: (0)	how does it sound?
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07-29-2015, 08:54 PM	#48
SLH350 Private 11 Rep 81 Posts Drives: '13 M3 Join Date: May 2009 Location: Pensacola, FL / CC, TX / Meridian, MS / Norfolk, VA iTrader: (0)	Excited for sound clips. Tip size looks perfect.
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07-29-2015, 10:39 PM	#49
p27rpy Private 92 Rep 87 Posts Drives: 2020 BMW M2C Join Date: Feb 2014 Location: Denver, CO iTrader: (0) Garage List 2020 BMW M2 Competi ... [0.00] 2008 Porsche Cayman S [0.00] 2016 BMW 328i [0.00]	Wooooow. Sound clips, sound clips!
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07-30-2015, 11:15 PM	#51
briansjacobs Private 17 Rep 61 Posts Drives: 2010 335d, 740i sport, E30 328 Join Date: Jul 2015 Location: Palm Beach iTrader: (0) Garage List 2010 335d [0.00] 1987 325(ISH) [0.00] 2001 740I [0.00]	hmmmm, this is getting interesting http://www.amazon.com/QTEC25-Electri.../dp/B003R2MSA8
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07-31-2015, 09:19 AM	#52
BB_cuda Brigadier General 765 Rep 3,556 Posts Drives: 2011 335D Msport, 2013 X5D Join Date: Nov 2011 Location: Clear Lake, Texas iTrader: (0)	Hahaha. Banished one's D is the "model" testing out the prototype exhaust. Notice how the hanger off the back of the transmission is still being used. The design has two little shelfs that the OEM black rubber foot bolts to. My shop couldn't do this. They used a standard hangar wended to the pipe and screwed it to the transmission cross member. This detail is very OEM. Kudos
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08-04-2015, 08:55 AM	#53
texroad Registered 0 Rep 2 Posts Drives: 2011 335d Join Date: Jun 2015 Location: Austin, TX iTrader: (0)	Looks awesome can't wait.
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08-07-2015, 05:37 AM	#54
sukutash First Lieutenant 66 Rep 365 Posts Drives: 2011 335d, 2020 M2C Join Date: Jan 2011 Location: Ft Worth iTrader: (7) Garage List 2020 BMW M2 KOMP [0.00] 2014 BMW 535i [0.00] 2012 MERC E63 AMG W ... [0.00] 2011 BMW 335d [0.00]	Anyone thinking of going single pipe all the way? would it be possible?
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08-07-2015, 07:11 AM	#55
GaryE30 COAL FED 74 Rep 300 Posts Drives: 335d, M3, X5 Join Date: Feb 2015 Location: Easley, SC iTrader: (0)	Do we have a date confirmed yet?
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08-09-2015, 09:42 AM	#56
Lexx.md Second Lieutenant 38 Rep 291 Posts Drives: e90 335D Join Date: Jul 2015 Location: Boston iTrader: (0)	I would agree with fsd350 if it would be possible, i would like just to replace a midpipe with catalytic converter and keep the stock mufflers. It should be cheaper, and why would i replace what is working as i need it. By midpipe i mean http://www.realoem.com/bmw/enUS/show...diagId=18_0815 And more than that, people here are asking for louder systems, i would want to keep my car as quiet as possible, even more than that, if it would be possible to have, i would replace this small resonator with something bigger to keep some sound inside Should be not that hard to do, as it is a separate piece. iaknown You are doing great job, these thoughts this is just something i wanted to share, so you would now other sales points. Attached Images
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08-09-2015, 09:51 AM	#57
Owen81 Lieutenant 83 Rep 432 Posts Drives: 335d, 17/22 TDI Join Date: May 2015 Location: Alberta, Canada iTrader: (0)	The problem is the converter section is oval and would be difficult to just replace that piece Last edited by Owen81; 08-09-2015 at 10:21 AM..
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08-09-2015, 10:07 AM	#58
Lexx.md Second Lieutenant 38 Rep 291 Posts Drives: e90 335D Join Date: Jul 2015 Location: Boston iTrader: (0)	But they exist, something like this one http://www.ebay.com/itm/131437437385 or maybe better quality. Or even maybe better solution to have this one in the center, and two pipes to go to each rear muffler. http://www.ebay.com/itm/191636100259 Anyway maybe the resonator works as well, i am not a pro, it is just my thoughts. I am always trying to keep my car quiet and fast.
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08-09-2015, 10:23 AM	#59
Owen81 Lieutenant 83 Rep 432 Posts Drives: 335d, 17/22 TDI Join Date: May 2015 Location: Alberta, Canada iTrader: (0)	The pipe is oval, you can't just mate up a standard piece of pipe. Look at the RealOEM diagram, see how it looks squished?
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08-09-2015, 10:40 AM	#60
Lexx.md Second Lieutenant 38 Rep 291 Posts Drives: e90 335D Join Date: Jul 2015 Location: Boston iTrader: (0)	Oh, i meant to use pipes what iaknown is doing, just to have a bigger central muffler option. The OEM ones is not possible to match, so only open and take the stuff out of it.
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08-09-2015, 01:14 PM	#61
e46mpwr Private First Class 13 Rep 104 Posts Drives: '10 335d, '20 X3M Join Date: Apr 2009 Location: Los Angeles, CA iTrader: (1) Garage List 2020 BMW X3M [0.00] 2017 BMW i3 [0.00] 2019 BMW i3s [0.00] 2018 BMW 330e [0.00] 2001 BMW 330i [0.00] 2010 BMW 335d [0.00]	That exhaust system looks mighty nice. What are the performance gains/losses (looking for a dynochart) from it and how much of a weight savings is there over the stock exhaust system? __________________ '01 330i, '10 335d, '18 330e, '19 i3s, '20 X3M Gone '02 M3, '09 535i, '14 i3, '17 i3
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08-09-2015, 02:44 PM	#62
Yozh Colonel 870 Rep 2,615 Posts Drives: 2011 335d M-Sport Join Date: Mar 2014 Location: Wet Coast iTrader: (4)	Weight savings would be significant. The stock system is very heavy. Don't have the numbers...
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08-11-2015, 04:04 PM	#65
briansjacobs Private 17 Rep 61 Posts Drives: 2010 335d, 740i sport, E30 328 Join Date: Jul 2015 Location: Palm Beach iTrader: (0) Garage List 2010 335d [0.00] 1987 325(ISH) [0.00] 2001 740I [0.00]	we all appreciate the update and the pics are awesome, but less typing and more welding. K thanx
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08-11-2015, 07:23 PM	#66
BB_cuda Brigadier General 765 Rep 3,556 Posts Drives: 2011 335D Msport, 2013 X5D Join Date: Nov 2011 Location: Clear Lake, Texas iTrader: (0)	Iaknown has been working on this exhaust development for over a half year if not closer to a year. The fabrication people are working up the production details since the proto is done. I would expect we need to afford him respect and patience. Typing or not isn't going to speed the process that he is waiting for. Out
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