M3 exhaust modification

sehrgut · 12-21-2009, 04:09 AM

Whats the name of the exhaust tape? Where do you buy that? Thanks

Periokid · 12-21-2009, 08:03 AM

Quote:

Originally Posted by Poppin Fresh

This is definitely one good option to choose for me since I can't make up my mind on what system to get. So, let's say I leave all but one set of hole (large or small amount). Would it be a step down on the tone and volume your exhaust? Or would it give the opposite effect? Thank you in advance.

Hard to say until it is actually done. I would assume that leaving holes open would decrease the sound.

Periokid · 12-21-2009, 08:05 AM

Quote:

Originally Posted by sehrgut

Whats the name of the exhaust tape? Where do you buy that? Thanks

I bought it at pep boys. I forget the name. Basically it is muffler wrap to repair mufflers on the cheap. It cures when heated. I clamped it, even though they claim it is not necessary.

Crydaddy · 12-22-2009, 09:25 PM

What caused the backfire during initial testing?

Periokid · 12-23-2009, 10:43 AM

Quote:

Originally Posted by Crydaddy

What caused the backfire during initial testing?

Not really sure. The exhaust was almost like straight pipes at that point but the car was also a little cold. Maybe the mixture was a little rich at the time of the backfire.

Crydaddy · 12-23-2009, 11:29 AM

I already modded my exhaust just like yours and i had a backfire. Happened once though. Really sweet sound i might say!!! Ty!

s99ane · 12-27-2009, 08:10 AM

Crydaddy did you do it exactly like our new best friend Perio or did you try a diffferent technique. I mean did you do just one side or cover different holes?
Please elaborate.
Thanks

Definitive · 12-28-2009, 03:35 PM

Hey Guys,

I was wondering who you are having doing the welding on the exhaust. My local muffler shop said they cant work on Stainless Steel and thats what the muffler is made of and that it will be very hard to find a shop that can help with welding stainless....

First is that true? And if it is where are you guys having this work done?

D

Crydaddy · 12-28-2009, 05:19 PM

Quote:

Originally Posted by s99ane

Crydaddy did you do it exactly like our new best friend Perio or did you try a diffferent technique. I mean did you do just one side or cover different holes?
Please elaborate.
Thanks

-exactly like what "gummer"(perio) did. Did not want to go through all the install/remove to test since i dont have a lift.

Quote:

Originally Posted by Definitive

Hey Guys,

I was wondering who you are having doing the welding on the exhaust. My local muffler shop said they cant work on Stainless Steel and thats what the muffler is made of and that it will be very hard to find a shop that can help with welding stainless....

First is that true? And if it is where are you guys having this work done?

D

my local exhaust shop did it. said it was a little difficult but he got it done. it probably helped when i told him that it does not have to look pretty.

SpencerM3 · 12-28-2009, 06:21 PM

Quote:

Originally Posted by Definitive

Hey Guys,

I was wondering who you are having doing the welding on the exhaust. My local muffler shop said they cant work on Stainless Steel and thats what the muffler is made of and that it will be very hard to find a shop that can help with welding stainless....

First is that true? And if it is where are you guys having this work done?

D

I think Bavarian Workshop in Canoga Park can do it, they did on my old E46.

Definitive · 12-28-2009, 09:05 PM

Thanks spencer, Ill keep them in mind.

GhostyM · 12-30-2009, 02:16 PM

I am looking for an OEM exhaust to buy and do this. if not, ill just do it my stock one I have right now.

s99ane · 12-31-2009, 08:40 AM

Quote:

Originally Posted by Crydaddy

-exactly like what "gummer"(perio) did. Did not want to go through all the install/remove to test since i dont have a lift.

my local exhaust shop did it. said it was a little difficult but he got it done. it probably helped when i told him that it does not have to look pretty.

I was wondering, is it not possible to cut into the chambers in the exhaust from the top rather than the bottom then the welds cannot be seen?

How long did this take you Crydaddy from start to finish approx?

Sorry about all the questions guys.

S99ANE

Definitive · 12-31-2009, 10:52 AM

I was thinking the same thing S99ANE... Thats what I plan unless someone here tell us you cant do it that way.

D

Periokid · 12-31-2009, 01:15 PM

Quote:

Originally Posted by s99ane

I was wondering, is it not possible to cut into the chambers in the exhaust from the top rather than the bottom then the welds cannot be seen?

S99ANE

That was my original plan. The top of the can is much narrower and has more of a curve. I am not saying it is not possible to do it from the top but access is much better from the bottom. Cutting and welding is likely easier too.

Finnegan · 12-31-2009, 02:02 PM

Sounds good; seems like the modder can decide on how loud to go (there's a range of "loud"); and the lack of drone is fantastic. It has all the things you want in a semi-DIY mod: cheap, fairly easy (finding a welder sounds like the toughest piece), and great results.

I really like the fact that pioneers like you and Subw00wer blazed the way on the exhaust front. Lots of folks want to kick up the sound of the the exhaust a bit, but really don't want drone (Helmholtz chambers are key), and more importantly don't want to spend an outrageous sum on an exhaust. This option hits on all the key requirements!

Nice work guys--this is the forum/community at its best! (Same can be said of PG and Mixja on the Virtual Dyno....)

I think this needs it's own DIY thread at some point. Don't get me wrong--this is a great thread itself but it would be nice to have just the step-by-step instructions/tips/photos w/o some of the additional chat (like my post here

).

Crydaddy · 12-31-2009, 02:23 PM

Quote:

Originally Posted by s99ane

I was wondering, is it not possible to cut into the chambers in the exhaust from the top rather than the bottom then the welds cannot be seen?

How long did this take you Crydaddy from start to finish approx?

Sorry about all the questions guys.

S99ANE

~ 6 hours. had to run to local welder, auto parts to get materials. hardest part was to put exhaust back on. i was all alone to do it without a lift. that sunofawich is really heavy. had to cradle it with my legs to insert the pipe.

Periokid · 01-10-2010, 07:06 PM

I am now looking for new tips. I want a little wider and a drop longer. Any ideas?

wrh3 · 01-10-2010, 07:09 PM

Magnaflow makes nice double wall tips.....

http://www.planetmagnaflow.com/shop/...l-Tips-75.html

Find the P/N you like and then Google it for the best shipped price.

Periokid · 01-10-2010, 08:36 PM

Those tips are nice but I rather not have the magnaflow name on them. I am not sure if they all have that. Also, they are a bit pricey. Four tips could cost me as much has the whole project.

wrh3 · 01-10-2010, 09:40 PM

I have purchased these tips for as cheap as $20 for past projects, just have to shop around. The MagnaFlow logo can be removed if turning them to face down is not acceptable. Stainless steel tips won't be cheap, but sometimes deals can be found.

Maseroche · 01-11-2010, 02:30 AM

These guys make all sorts of tips. A friend of mine used them on his GTI and they look great.

http://www.bosalperformance.com/bosal_tips.html

12-21-2009, 04:09 AM	#155
sehrgut Major 33 Rep 1,033 Posts Drives: emthree Join Date: Oct 2009 Location: socal iTrader: (1)	Whats the name of the exhaust tape? Where do you buy that? Thanks
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12-22-2009, 09:25 PM	#158
Crydaddy pin up model 7 Rep 76 Posts Drives: E92 m3 Join Date: Jun 2009 Location: fort wayne, IN iTrader: (3)	What caused the backfire during initial testing?
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12-23-2009, 11:29 AM	#160
Crydaddy pin up model 7 Rep 76 Posts Drives: E92 m3 Join Date: Jun 2009 Location: fort wayne, IN iTrader: (3)	I already modded my exhaust just like yours and i had a backfire. Happened once though. Really sweet sound i might say!!! Ty!
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12-27-2009, 08:10 AM	#161
s99ane Private First Class 15 Rep 136 Posts Drives: e92 M3 Join Date: Jul 2009 Location: Madchester uk iTrader: (0)	Crydaddy did you do it exactly like our new best friend Perio or did you try a diffferent technique. I mean did you do just one side or cover different holes? Please elaborate. Thanks __________________ E92 M3 COUPE JEREZ BLACK HAMMAN SIDE SKIRTS AND DIFFUSER REMUS RACE
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12-28-2009, 03:35 PM	#162
Definitive definitivecars.com 354 Rep 3,833 Posts Drives: Elsa - 2015 F80 M3 - YMB/SS Join Date: Aug 2006 Location: So Cal iTrader: (3) Garage List 2011 E90 M3 [6.66] 2009 (Lease up Sept ... [0.00] 2007 (Lease up 6/19 ... [0.00] 2007 (Lease up Octo ... [0.00]	Hey Guys, I was wondering who you are having doing the welding on the exhaust. My local muffler shop said they cant work on Stainless Steel and thats what the muffler is made of and that it will be very hard to find a shop that can help with welding stainless.... First is that true? And if it is where are you guys having this work done? D
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12-28-2009, 09:05 PM	#165
Definitive definitivecars.com 354 Rep 3,833 Posts Drives: Elsa - 2015 F80 M3 - YMB/SS Join Date: Aug 2006 Location: So Cal iTrader: (3) Garage List 2011 E90 M3 [6.66] 2009 (Lease up Sept ... [0.00] 2007 (Lease up 6/19 ... [0.00] 2007 (Lease up Octo ... [0.00]	Thanks spencer, Ill keep them in mind.
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12-30-2009, 02:16 PM	#166
GhostyM Major 539 Rep 1,463 Posts Drives: plenty Join Date: Mar 2007 Location: US iTrader: (0)	I am looking for an OEM exhaust to buy and do this. if not, ill just do it my stock one I have right now.
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12-31-2009, 10:52 AM	#168
Definitive definitivecars.com 354 Rep 3,833 Posts Drives: Elsa - 2015 F80 M3 - YMB/SS Join Date: Aug 2006 Location: So Cal iTrader: (3) Garage List 2011 E90 M3 [6.66] 2009 (Lease up Sept ... [0.00] 2007 (Lease up 6/19 ... [0.00] 2007 (Lease up Octo ... [0.00]	I was thinking the same thing S99ANE... Thats what I plan unless someone here tell us you cant do it that way. D
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12-31-2009, 02:02 PM	#170
Finnegan Dog Listener 701 Rep 7,850 Posts Drives: Z4M/. Z3M, E36/46 M3 Join Date: Oct 2008 Location: Teaching the dog to slalom iTrader: (22)	Sounds good; seems like the modder can decide on how loud to go (there's a range of "loud"); and the lack of drone is fantastic. It has all the things you want in a semi-DIY mod: cheap, fairly easy (finding a welder sounds like the toughest piece), and great results. I really like the fact that pioneers like you and Subw00wer blazed the way on the exhaust front. Lots of folks want to kick up the sound of the the exhaust a bit, but really don't want drone (Helmholtz chambers are key), and more importantly don't want to spend an outrageous sum on an exhaust. This option hits on all the key requirements! Nice work guys--this is the forum/community at its best! (Same can be said of PG and Mixja on the Virtual Dyno....) I think this needs it's own DIY thread at some point. Don't get me wrong--this is a great thread itself but it would be nice to have just the step-by-step instructions/tips/photos w/o some of the additional chat (like my post here ).
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01-10-2010, 07:06 PM	#172
Periokid First Lieutenant 51 Rep 335 Posts Drives: 2015 F80 M3 Join Date: Apr 2009 Location: LI, NY iTrader: (0)	I am now looking for new tips. I want a little wider and a drop longer. Any ideas?
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01-10-2010, 07:09 PM	#173
wrh3 Car Guy 31 Rep 796 Posts Drives: 2005 MCS, 2013 Corvette 427 Join Date: Aug 2007 Location: ATL, GA iTrader: (10)	Magnaflow makes nice double wall tips..... http://www.planetmagnaflow.com/shop/...l-Tips-75.html Find the P/N you like and then Google it for the best shipped price. __________________ Bill- 2005 Mini Cooper S, 2013 Corvette 427 www.billswebspace.com/bmwindex BMW CCA Member # 389948
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01-10-2010, 08:36 PM	#174
Periokid First Lieutenant 51 Rep 335 Posts Drives: 2015 F80 M3 Join Date: Apr 2009 Location: LI, NY iTrader: (0)	Those tips are nice but I rather not have the magnaflow name on them. I am not sure if they all have that. Also, they are a bit pricey. Four tips could cost me as much has the whole project.
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01-10-2010, 09:40 PM	#175
wrh3 Car Guy 31 Rep 796 Posts Drives: 2005 MCS, 2013 Corvette 427 Join Date: Aug 2007 Location: ATL, GA iTrader: (10)	I have purchased these tips for as cheap as $20 for past projects, just have to shop around. The MagnaFlow logo can be removed if turning them to face down is not acceptable. Stainless steel tips won't be cheap, but sometimes deals can be found. __________________ Bill- 2005 Mini Cooper S, 2013 Corvette 427 www.billswebspace.com/bmwindex BMW CCA Member # 389948
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01-11-2010, 02:30 AM	#176
Maseroche Major 55 Rep 1,447 Posts Drives: '12 BMW M3 Join Date: Sep 2009 Location: Bahrain iTrader: (0) Garage List 2012 BMW M3 [0.00]	These guys make all sorts of tips. A friend of mine used them on his GTI and they look great. http://www.bosalperformance.com/bosal_tips.html __________________ Khalid '12 BMW E92 M3 '03 BMW E46 M3 '14 Mercedes-Benz S400 '18 Alfa Romeo Giulia Quadrifoglio
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