2010 2011 BMW 5 Series Forum F10
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
 

2010 2011 BMW 5 Series Forum F10 BMW 5-Series (F10) Forums F10 / F11 5-Series Photos - Video - Media Installed & modified F10 M5 diffuser w/ Muffler Delete + Quad Tips on 550xi (Video)
Post Reply
 
Thread Tools Search this Thread
      04-20-2012, 09:45 AM   #1
Igor_M5
Igor_M5's Avatar
United_States
2117
Rep
1,823
Posts

Drives: Many, BMW.
Join Date: Aug 2007
Location: New York City

iTrader: (10)

Garage List
Installed & modified F10 M5 diffuser w/ Muffler Delete + Quad Tips on 550xi (Video)

I was itching to mess around with my shops neighbors 2012 550xi. I hated what he had going on with his rear end so I'm slowly revising it with my own twist, even though he was against every idea, he's slowly loving the out come

Anyway... I ordered the F10 M5 diffuser from getbmwparts.com. Once it arrived, I had it painted AW, and went ahead to test if it... figured it would be a direct swap, I was wrong. In order to fit the M5 diffuser, it was either modify the stock tips and shift them a few inches, or pick up Quad Tips and get em installed.

Ordered Magnaflow Performance 3" tips and went ahead to install em.



Didn't get to far when I realized the tips are too long, and theres hardly any room to move the tips over a few inches to clear the diffuser, so... off went the mufflers... and up went my boner when I decided to test drive the car without them.











The amazing deep growl was too good to pass up on and some convincing was in order. After having the owner test drive it without mufflers on the way hom and back to work, he was more than convinced he wanted to keep the mufflers off and just add the quad tips.

I had the exhaust chopped about 2" before the mufflers, welded an extension pipe to a y-splitter, and finally attached the tips. I figured 3" tips would have been big enough, but now I believe a pair of 4" tips would fit nice and snug. Having 3" tips, I ended up adjusting them to sit closer to the top of the exhaust tip cut out, otherwise they looked just a tad too small from long distance.

But wait... theres more. Upon orderding the diffuser, I also tried sourcing the center insert which was impossible to find, I called half a dozen shops who specialize in BMW Parts import, as well as dozens of dealerships, and researched for hours and no one was able to obtain it.

Upon installing the diffuser, I also realized that I need to replace the plastic trim that goes over the rear bumper support/carrier, it's called an adapter for some reason.


The part numbers on the X and M models don't match.
xi: 51127299970
M5: 51127203976

So without trimming the stock bumper carrier adapter, the diffuser will not even go on. Since the owner had previously backed into an object and had slight damage that he had repaired, the adapter plate wasn't replaced, and I found that it was cracked. With that discovery, I went ahead and started chopping it up.

Some chopping up later, and the diffuser fit nice and snug, but now I was missing the mounting points for the fins that come down the side of the exhaust. How it works is the the diffuser is secured between the bumper carrier adapter and this center plate thats mounted to the floor of the trunk. I had diffuser which didn't fit the carrier adapter, and an adapter that was missing half the mounting points because it had to get chopped off to accommodate the M5 diffuser, and on top of all that I was still missing the diffuser center insert, which I'm 100% sure won't fit unless you completely remove the non-M5 bumper carrier adapter.

Diffuser fitted, with a preview of what the tips would look like...


Welding in progress


Then, I decided that once the F10 M5 parts become a little bit easily obtainable, I would order the bumper carrier adapter, along with the bottom center cover (which by the way doesn't have any part numbers or diagrams listed by RealOEM.com) and the diffuser insert for a complete OEM M5 diffuser revision.

I wanted to make a temporary diffuser insert using a spare M-Tech diffuser I had laying around, while digging through the pile of Infiniti/Nissan/BMW parts, I found a carbon fiber G37 diffuser I had laying around for several years from a prototype project. Without giving it second thought, I went and cut out a big enough piece to fit in place of the M5 diffuser insert, but not without a few hours of cutting, flipping, drilling, trimming, and suffering from the carbon fiber itch did I get it to fit almost perfect. The end result looked awesome. I had successfully secured the insert to the bumper carrier and to the underpanel center cover with the bottom ends of the diffuser sandwiched in between for a really sturdy and reliable fitment. At the end of the day, diffusers go through a lot of wind pressure, especially at high speed, so it's important to secure everything as tight as possible, whether it's heavy duty clips, or screws w/ bolts.

Upon completion, I painted the diffuser insert flat black using plastidip to prevent any chipping and to disguise the CF trim since nothing else on the car was CF.

Before the post gets too long, here are some pictures and a start up video of the exhaust. When I get a spare hour, I'll upload some videos and feedback on the muffler delete prior to adding the extension pipe, after, and overall sound and performance affect.

Till then, enjoy some of the pics. (VIDEO IS AT THE BOTTOM OF THE POST)



In the middle of it all, I felt compelled to rip the ACS trunk wing... unfortunately it was mounted using windshield polyeurethane, and removing it wasn't even a task, nor a pain in the ass, it was literally nightmare. It was well worth it though because I really wanted to throw on the AW performance trunk spoiler on it I had laying around the shop.

All done up


Carbon Fiber:


Flat Black:




Some cool instagram'd photos I had done during the process for social teasing.


VIDEO:
http://www.facebook.com/photo.php?v=339208362801392
Appreciate 0
      04-20-2012, 10:08 AM   #2
E60orBust
Captain
United_States
87
Rep
825
Posts

Drives: "The Brothers //M-Sport" E90/2
Join Date: Jul 2007
Location: MD

iTrader: (2)

That is with no mufflers, just the factory DP and section 1/2 bits??
__________________
Down for Maintenance
Appreciate 0
      04-20-2012, 11:06 AM   #3
dblock2151
Lieutenant
22
Rep
471
Posts

Drives: '11 550i Msport DG
Join Date: Apr 2011
Location: Newington, CT

iTrader: (5)

Sounds awesome
Appreciate 0
      04-20-2012, 11:28 AM   #4
ATLANTA F10
Private First Class
ATLANTA F10's Avatar
28
Rep
174
Posts

Drives: 2013 M5
Join Date: Aug 2011
Location: Atlanta

iTrader: (1)

Very nice project...good job.
Appreciate 0
      04-20-2012, 02:41 PM   #5
yxc145
Captain
United_States
57
Rep
645
Posts

Drives: 2011 535i
Join Date: Jul 2011
Location: Chicago

iTrader: (0)

Great Job!!!! but the tips need to be bigger. I have heard Lacster is upgrading to 4" tips because the 3.5" he had did not fill the opening well.
Appreciate 0
      04-20-2012, 03:35 PM   #6
Alan l.
Major General
Alan l.'s Avatar
5279
Rep
8,742
Posts

Drives: 2020 F95 X5M Competition
Join Date: Jun 2009
Location: United States

iTrader: (9)

diffusor looks great but the ultra black'ed out tails looks ghetto as if the car got his taillights jacked lol

The tail lights is one of the best features of the f10....no reason to completely hide it. i would do a light tinted clear over them instead.

Alan
__________________
Appreciate 0
      04-20-2012, 05:51 PM   #7
Igor_M5
Igor_M5's Avatar
United_States
2117
Rep
1,823
Posts

Drives: Many, BMW.
Join Date: Aug 2007
Location: New York City

iTrader: (10)

Garage List
Quote:
Originally Posted by E60orBust View Post
That is with no mufflers, just the factory DP and section 1/2 bits??
It's completely stock, usually I just remove the resonator, but it sounds a bit too raspy IMO so I went with removing just the mufflers and leaving everything else stock.

Quote:
Originally Posted by Alan l. View Post
diffusor looks great but the ultra black'ed out tails looks ghetto as if the car got his taillights jacked lol

The tail lights is one of the best features of the f10....no reason to completely hide it. i would do a light tinted clear over them instead.

Alan
He had work done to his car by another shop prior to meeting him. He had the ACS roof and trunk wing installed, black ebay emblems, black tails and reflectors. My goal is redo the tails in a very light smoke, paint the reflectors AW, and debadge the 550. I just installed the spoiler, so the transformation is almost complete.

I'll post some pictures tomorrow.
Appreciate 0
      04-21-2012, 12:48 AM   #8
s2kdagjd
Lieutenant
s2kdagjd's Avatar
45
Rep
471
Posts

Drives: G05 M50i
Join Date: Dec 2007
Location: OC

iTrader: (5)

Let's hear you rev that sucker!!!
Appreciate 0
      04-21-2012, 10:26 PM   #9
EV0LVE
Captain
EV0LVE's Avatar
41
Rep
776
Posts

Drives: F10 535i SG
Join Date: Dec 2010
Location: So Cal

iTrader: (1)

Good call on the tail lights, it needs to be lighter with a shade of red perhaps. Black tails are so played out.

Cheers!
Appreciate 0
      04-21-2012, 11:17 PM   #10
78mao
Major
78mao's Avatar
Taiwan
132
Rep
1,087
Posts

Drives: F10, F13, current->F80, F15 X5
Join Date: Apr 2010
Location: Socal/Irvine

iTrader: (1)

Garage List
2015 M3 BMW M3  [1.00]
looks like the placement of the mufflers are very similar to the 535 from axle back! would the axle back system be the same from all the manufactures?
__________________
Appreciate 0
      04-22-2012, 02:55 AM   #11
PlannBee
Major
PlannBee's Avatar
Cambodia
49
Rep
1,341
Posts

Drives: A Visible E36
Join Date: Sep 2009
Location: Fresno, CA

iTrader: (0)

Let oneEighty do the headlights!
__________________
-Brandon
"I now have a Beautiful Mysterious Woman "

"My Real E36" - '96 328is 5MT/Boston Green/Beige/Wood Grain/18" Style 189/BONE STOCK
Appreciate 0
      04-23-2012, 02:42 AM   #12
stealth.pilot
Knight Commander
stealth.pilot's Avatar
United Kingdom
553
Rep
5,948
Posts

Drives: 2014 911 Turbo S
Join Date: Aug 2010
Location: Buckhead

iTrader: (0)

Garage List
The tips are too small. They need to be bigger.

The lights look horrible. You should tint the white line lights instead. Tinting the red lights just looks ghetto. Google tinted white lines. Hamann or Hartge or someone like that did it.

Good call to kill the Spoiler.
__________________
2022 Mercedes-Benz EQS 580
2020 Mercedes-Benz GLE 450
Ordered: EQS580, BMW IX, Lucid Air Touring, Corvette Stingray
Appreciate 0
      04-23-2012, 05:04 AM   #13
Igor_M5
Igor_M5's Avatar
United_States
2117
Rep
1,823
Posts

Drives: Many, BMW.
Join Date: Aug 2007
Location: New York City

iTrader: (10)

Garage List
I'm on a hunt for some white lines right now actually... I've had those in mind for his far for a while now, but the price tag on them is outrageous. LUCKLY, I found a source for white lines ranging in the price of $450ish

Since it's been almost a week, I'm starting to feel that the exhaust tips ARE too small, fawk. I'll get him to swap em out in a few months once his excitement tames a bit lol
Appreciate 0
      04-23-2012, 07:25 PM   #14
datbimmerdoe
Lieutenant General
datbimmerdoe's Avatar
United_States
1265
Rep
17,493
Posts

Drives: like I'M BOUT THAT LIFE
Join Date: Jul 2008
Location: PARADISE aka CANES COUNTRY

iTrader: (0)

diff looks sexy! def get rid of the taillight tint or get whitelines. also, get bigger tips too.
__________________
#datbimmerdoe #thatbimmertho

FOLLOW @datbimmerdoe on INSTAGRAM
Appreciate 0
      04-23-2012, 11:21 PM   #15
Igor_M5
Igor_M5's Avatar
United_States
2117
Rep
1,823
Posts

Drives: Many, BMW.
Join Date: Aug 2007
Location: New York City

iTrader: (10)

Garage List
Just picked up a pair of white lines
Appreciate 0
      04-24-2012, 02:12 AM   #16
Nobleman
First Lieutenant
Nobleman's Avatar
United_States
28
Rep
304
Posts

Drives: 2011 535 Xdrive Msport TiAg
Join Date: Jan 2012
Location: NJ Edgewater

iTrader: (7)

Quote:
Originally Posted by X-Vert View Post
Just picked up a pair of white lines
Was it used or brand NEW! $450 seems very resonable Price. Do u mind I ask u where u god the whiteline's.
Appreciate 0
      04-24-2012, 01:10 PM   #17
JSCO
Brigadier General
JSCO's Avatar
United_States
533
Rep
3,717
Posts

Drives: AMG GT
Join Date: Jan 2010
Location: Tampa

iTrader: (4)

very nice..not sure y BMW went the box muffler tip route...QUADS ALL DAY!
Appreciate 0
      04-24-2012, 03:02 PM   #18
Artur-F10
Lieutenant
Artur-F10's Avatar
42
Rep
442
Posts

Drives: BMW F12 M6
Join Date: Jan 2012
Location: Los Angeles,CA

iTrader: (0)

do you want to sell your 550 muffler with tips? let me know if yes
Appreciate 0
      07-25-2012, 01:05 PM   #19
Regardless
Private First Class
Regardless's Avatar
33
Rep
180
Posts

Drives: turbo'd inline 6
Join Date: Jun 2012
Location: SoCal

iTrader: (0)

550i with M5 diffuser

Quote:
Originally Posted by Igor@ONEighty View Post
I was itching to mess around with my shops neighbors 2012 550xi. I hated what he had going on with his rear end so I'm slowly revising it with my own twist, even though he was against every idea, he's slowly loving the out come

Anyway... I ordered the F10 M5 diffuser from getbmwparts.com. Once it arrived, I had it painted AW, and went ahead to test if it... figured it would be a direct swap, I was wrong. In order to fit the M5 diffuser, it was either modify the stock tips and shift them a few inches, or pick up Quad Tips and get em installed.

I was hoping the m5 diffuser was a direct swap for the 550i too.. Anyone know how much modification would be needed to make this setup work with stock 550i tips?
Appreciate 0
      07-26-2012, 05:36 AM   #20
Jet in Oz
Captain
Jet in Oz's Avatar
Australia
185
Rep
947
Posts

Drives: 2014 F10 535D
Join Date: Mar 2012
Location: Land of Oz

iTrader: (0)

Quote:
Originally Posted by EV0LVE View Post
Good call on the tail lights, it needs to be lighter with a shade of red perhaps. Black tails are so played out.

Cheers!
+1 on the tail light change as they looked a little backyard and bogan imo.
__________________
Current Mistress: 2014 F10 535D M Sport - Alpine White
Retired but not forgotten: 2011 F10 535i - Titan Silver; E53 X5 4.4L Sport - Space Grey;
E46 M3 Individual Convertible - Phoenix Yellow; E39 528 - Glacier Green;
E36 328 Convertible - Montreal Blue
Appreciate 0
      04-02-2015, 02:40 PM   #21
flaviu52
Private First Class
36
Rep
168
Posts

Drives: Bmw F10 535i Bmw F13 650XI
Join Date: Feb 2013
Location: Chicago

iTrader: (0)

Here is my conversion from Non M bumper to M5 bumper with quad exhaust
http://f10.5post.com/forums/showthread.php?t=1110496
Appreciate 0
      04-02-2015, 02:42 PM   #22
flaviu52
Private First Class
36
Rep
168
Posts

Drives: Bmw F10 535i Bmw F13 650XI
Join Date: Feb 2013
Location: Chicago

iTrader: (0)

And for sale some remaining parts from my regular bumper and some parts for the M bumper not the M5 bumper that i order wrong
http://f10.5post.com/forums/showthread.php?t=1110483
Appreciate 0
Post Reply

Bookmarks

Tags
550, f10 m5, m5 diffuser, quad tips

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



All times are GMT -5. The time now is 03:35 AM.




5post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
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