M5POST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   M5POST - BMW M5 Forum > F10 M5 Forum > F10 M5 DIY Guides

Post Reply
 
Thread Tools Search this Thread
      09-10-2012, 05:15 PM   #1
Nate@IND
 
Nate@IND's Avatar
 
Drives: BMW
Join Date: Oct 2006
Location: Chicago

Posts: 10,060
iTrader: (19)

Eisenmann Sport Performance F10 M5 Oval tip (DIY)

The factory exhaust system found on the F10 M5 is a very well designed piece, with one continuous length of piping from the down pipes to the exhaust tips, generous piping diameters, and a nearly straight through muffler design. Unfortunately the original exhaust system does not produce a sound quite as sporting as many fans of the M5 would like, and the original exhaust tips also leave something to be desired. Many M5 owners are interested in the extra sound and larger tips of a performance exhaust system, but do not wish to add a complete exhaust system to the car, and this DIY installation guide of an Eisenmann rear muffler addresses just that.





Youíll need to lift the rear of the car, either by putting the car on a lift or placing the car securely on jackstands.





This shot shows the section of piping where a cut will be made to allow the Eisenmann rear mufflers to be installed.



Line up the Eisenmann rear muffler directly below the original BMW system. The key is to align the Eisenmann hangers so that they are immediately below the BMW exhaust hangers.



The Eisenmann exhaust piping contains an expanded section that is designed to slip over the original BMW piping. Use a straight edge to align the beginning of the expanded section with the original piping, and place a mark on the original piping. The goal here is to ensure there is a sufficient length of original BMW piping to slip inside the Eisenmann piping. Remember to measure twice and check your measurements as this step is important!



At this point you can use some masking tape to mark a complete line.



Use a pipe cutting tool to cut the connecting pipe



The mufflers are removed by unbolting the exhaust hangers. We will have some more detailed photos of the hanger locations early next week.



The system we installed on this car used Eisenmannís Oval exhaust tips, and a rear diffuser is provided to accommodate the larger tips. Prior to installing the Eisenmann system the original BMW diffuser must be removed. This is accomplished by first removing the black plastic rivets by using either a panel puller or a flat head screwdriver.









Once the plastic rivets have been removed, you can pull the diffuser off of the rear bumper, one clip at a time. Move along the diffuser, and it will release from the rear bumper.



The wiring in the photo above should be unclipped from itís plastic retainer, and slid directly behind the diffuser. This moves the wiring away from the exhaust tips.



At this point you can transfer the exhaust hangers from your original BMW muffler to the Eisenmann muffler. Raise the Eisenmann muffler slide the provided clamp over the OE BMW piping, and slide the Eisenmann piping over the BMW piping at this point. Raise the hangers to their original positions, and screw the original nuts back into place one by one. Tighten the clamp, but leave all of the nuts somewhat loose at this point, to allow for adjustment of the muffler tips.



Installation of the modified diffuser is reverse of removal. The modified diffuser is a trimmed OEM BMW piece, so it will fit exactly like factory. Simply snap the clips into the bumper one at a time, and re-install the plastic rivets.







AW vs. Gloss black diffuser-




The tip position can be adjusted by sliding the Eisenmann muffler forward and back on the original BMW piping, and also twisting it axially on the same piping. This will adjust the distance that the tips are exposed as well as the level and angle of the tips.

Once the tips are evenly positioned and angled relative to the rear diffuser, you can tighten the clamps and exhaust hanger nuts.

Youíre done! Enjoy the sound of your new exhaust!

Please keep in mind that this installation procedure applies to the oval tip slip on system only. The round tip exhaust systems do not require a different diffuser, and the full systems are completely bolt on and do not require cutting of your original exhaust.



__________________
Nate@IND is offline  
0
Reply With Quote
      09-19-2012, 11:26 AM   #2
Rich@GTBPerformance
Bimmerpost Sponsor and BMW Performance Guru
 
Rich@GTBPerformance's Avatar
 
Drives: 2011 135i
Join Date: Dec 2010
Location: NJ, Right outside of NYC

Posts: 4,158
iTrader: (19)

Great write up Nate

Can't wait to hear the system in person!
__________________

Your Home For Premium BMW Aftermarket Parts
www.gtbperformance.com | sales@gtbperformance.com | Facebook | 973 429 2839
Rich@GTBPerformance is offline  
0
Reply With Quote
      09-30-2012, 09:03 AM   #3
PatrickC23
Lieutenant Colonel
 
PatrickC23's Avatar
 
Drives: '13 F10 AW/SO ///M5
Join Date: Apr 2012
Location: NNJ

Posts: 1,719
iTrader: (0)

Garage List
2013 BMW ///M5  [0.00]
So this actually requires cutting the pipes? What do you do when you revert to stock?
__________________
Retired - 2009 C63 l 2007 Supercharged RRS l 2002 e46 SMG ///M3 l 2001 e46 330ci

2013 Alpine White/Sakhir Orange F10 M5 - 20" Modulare Matte Titanium Brushed B18s - Coded by the best, V12
2014 Jeep JKU Wrangler Willys Wheeler W Unlimited - Granite Crystal/Black
PatrickC23 is offline   United_States
0
Reply With Quote
      11-03-2012, 02:19 PM   #4
Artem@ONEighty
Lieutenant
 
Artem@ONEighty's Avatar
 
Drives: ZCP M3
Join Date: Jul 2012
Location: NYC

Posts: 550
iTrader: (2)

Great write up and the oval exhaust looks great. I loved it ever since I saw it previously on the E60 body M5.
Artem@ONEighty is offline   United_States
0
Reply With Quote
      01-10-2013, 06:54 PM   #5
Timberwolf
Lieutenant
 
Timberwolf's Avatar
 
Drives: People crazy
Join Date: Mar 2008
Location: Location, Location

Posts: 566
iTrader: (0)

Yuck cutting...
Timberwolf is offline  
0
Reply With Quote
      01-10-2013, 06:57 PM   #6
Nate@IND
 
Nate@IND's Avatar
 
Drives: BMW
Join Date: Oct 2006
Location: Chicago

Posts: 10,060
iTrader: (19)

Quote:
Originally Posted by Timberwolf View Post
Yuck cutting...
If you order the center pipes there is no cutting.

__________________
Nate@IND is offline  
0
Reply With Quote
      01-13-2013, 09:38 AM   #7
rjhoskins
Enlisted Member
 
Drives: Future F10 M5
Join Date: Jan 2013
Location: NC

Posts: 30
iTrader: (0)

Nate, has anyone done a dyno yet with just this setup (axle back only)? I know this is mostly just for sound, but still curious.

Ryan
rjhoskins is offline  
0
Reply With Quote
      04-11-2013, 12:48 AM   #8
pochesq
First Lieutenant
 
pochesq's Avatar
 
Drives: 2013 M5
Join Date: Feb 2013
Location: Southern California

Posts: 352
iTrader: (0)

Quote:
Originally Posted by Nate@IND View Post
The factory exhaust system found on the F10 M5 is a very well designed piece, with one continuous length of piping from the down pipes to the exhaust tips, generous piping diameters, and a nearly straight through muffler design. Unfortunately the original exhaust system does not produce a sound quite as sporting as many fans of the M5 would like, and the original exhaust tips also leave something to be desired. Many M5 owners are interested in the extra sound and larger tips of a performance exhaust system, but do not wish to add a complete exhaust system to the car, and this DIY installation guide of an Eisenmann rear muffler addresses just that.





Youíll need to lift the rear of the car, either by putting the car on a lift or placing the car securely on jackstands.





This shot shows the section of piping where a cut will be made to allow the Eisenmann rear mufflers to be installed.



Line up the Eisenmann rear muffler directly below the original BMW system. The key is to align the Eisenmann hangers so that they are immediately below the BMW exhaust hangers.



The Eisenmann exhaust piping contains an expanded section that is designed to slip over the original BMW piping. Use a straight edge to align the beginning of the expanded section with the original piping, and place a mark on the original piping. The goal here is to ensure there is a sufficient length of original BMW piping to slip inside the Eisenmann piping. Remember to measure twice and check your measurements as this step is important!



At this point you can use some masking tape to mark a complete line.



Use a pipe cutting tool to cut the connecting pipe



The mufflers are removed by unbolting the exhaust hangers. We will have some more detailed photos of the hanger locations early next week.



The system we installed on this car used Eisenmannís Oval exhaust tips, and a rear diffuser is provided to accommodate the larger tips. Prior to installing the Eisenmann system the original BMW diffuser must be removed. This is accomplished by first removing the black plastic rivets by using either a panel puller or a flat head screwdriver.









Once the plastic rivets have been removed, you can pull the diffuser off of the rear bumper, one clip at a time. Move along the diffuser, and it will release from the rear bumper.



The wiring in the photo above should be unclipped from itís plastic retainer, and slid directly behind the diffuser. This moves the wiring away from the exhaust tips.



At this point you can transfer the exhaust hangers from your original BMW muffler to the Eisenmann muffler. Raise the Eisenmann muffler slide the provided clamp over the OE BMW piping, and slide the Eisenmann piping over the BMW piping at this point. Raise the hangers to their original positions, and screw the original nuts back into place one by one. Tighten the clamp, but leave all of the nuts somewhat loose at this point, to allow for adjustment of the muffler tips.



Installation of the modified diffuser is reverse of removal. The modified diffuser is a trimmed OEM BMW piece, so it will fit exactly like factory. Simply snap the clips into the bumper one at a time, and re-install the plastic rivets.







AW vs. Gloss black diffuser-




The tip position can be adjusted by sliding the Eisenmann muffler forward and back on the original BMW piping, and also twisting it axially on the same piping. This will adjust the distance that the tips are exposed as well as the level and angle of the tips.

Once the tips are evenly positioned and angled relative to the rear diffuser, you can tighten the clamps and exhaust hanger nuts.

Youíre done! Enjoy the sound of your new exhaust!

Please keep in mind that this installation procedure applies to the oval tip slip on system only. The round tip exhaust systems do not require a different diffuser, and the full systems are completely bolt on and do not require cutting of your original exhaust.



How much for the Eisenmann rear muffler with round tips. Thanks
pochesq is offline   United_States
0
Reply With Quote
      03-30-2014, 11:43 PM   #9
Palomequet
Private First Class
 
Drives: BMW F10 M5
Join Date: Mar 2014
Location: Mexico

Posts: 157
iTrader: (0)

Garage List
2013 BMW M5  [5.00]
2008 BMW M3  [0.00]
Suggestion

Try on the Supersprint ( made in Italy, OEM manufacturer for Ferrari ) 100 mm. They are the best for your money.
Palomequet is offline  
0
Reply With Quote
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 10:50 PM.




m5post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST