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 F10 Technical Topics Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications AR Design catless downpipe initial impression
Post Reply
 
Thread Tools Search this Thread
      12-22-2012, 05:41 PM   #1
LACSTER
Major General
192
Rep
8,195
Posts

 
Drives: Hybrid
Join Date: Nov 2007
Location: oc

iTrader: (64)

AR Design catless downpipe initial impression

Hey guys,

After spending the last two years of ownership of the F10 doing purely cosmetic mods I felt if was time to start doing some performance mods.

I recently had the opportunity to work with Terry at BMS to test out the new JB4 Stage 2 tune. With the stage 2 tune Terry was able to eliminate the CEL with the added downpipe.
With the option I told myself it was time to add a downpipe and with a few companies already offering a downpipe for the F10 I choose to go with the best and that being said
I reached out to Andrew at AR Design to see if they would be releasing a downpipe for the F10 N55 motor and within a month I had one of the first AR Design downpipes at my door.

First thing I did was I called EAS to do some dyno runs with the car and JB4 tune alone because I wanted to see what the difference were with and without the downpipe. I have to say with just the JB4 tune the car felt better more responsive with quicker accelerations. My initial thought was the downpipe was just going to make my exhaust sound a bit more raspy and loud which was what I was looking for anyways but boy was I wrong.

After installing the downpipe Steve from EAS put the car back on the dyno for a series of about 5 runs to see what this downpipe offered and after the first run Steve was very impressed and said he didn't expect the power this downpipe offered. I had a huge grin on my face just hearing that After a few more runs I was able to take the car home.

MY FIRST IMPRESSION:

Like I mentioned above I've owned the car for over two years and the car was fun and all but after the install I can honestly say my car felt like a completely different animal.
I couldn't believe how much powerful the car felt and how when i stepped on the gas I car just took off. I really can't discribe it anyway other way but saying it felt like the motor was WIDE open.

Keep in mind I've only had the downpipe installed for about a few days now but this is one of the best mods I've done so far. I'm going to enjoy driving my car a lot more now!!!

I'll keep you guys posted with further updates and thought as I go.

Here's a snapshot of the dyno figures with and without the downpipe but with the JB4 tune.





The downpipe can be ordered here with the link below.

http://www.ardesign.info/store/ar-de...downpipes.html
Appreciate 0
      12-22-2012, 06:55 PM   #2
Nobleman
First Lieutenant
Nobleman's Avatar
United_States
6
Rep
304
Posts

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

iTrader: (7)

This is good shit bro!
Nice
__________________

Waiting New M4
Sold- 2011 535 Xdrive Msport TiAg
Retired- 2008 535i Sport Jet Black
Retired- 2006 335i Sport Jet Black
Appreciate 0
      12-22-2012, 09:25 PM   #3
T-Man
Private First Class
United_States
3
Rep
132
Posts

 
Drives: 535i M Sport
Join Date: Nov 2011
Location: Corona, CA

iTrader: (0)

271.70 Max Power was all the car had with the JB4 tune on it?
Appreciate 0
      12-22-2012, 10:31 PM   #4
LACSTER
Major General
192
Rep
8,195
Posts

 
Drives: Hybrid
Join Date: Nov 2007
Location: oc

iTrader: (64)

It's wierd how the numbers don't show much gain but it's night and day driving.
Appreciate 0
      12-22-2012, 11:07 PM   #5
T-Man
Private First Class
United_States
3
Rep
132
Posts

 
Drives: 535i M Sport
Join Date: Nov 2011
Location: Corona, CA

iTrader: (0)

So the 535 is basically putting out 245-250 rear wheel HP. And the JB4 is adding around 20-25 additional power. And with that being said based off that dyno reading the AR down pipe is creating almost the same HP that the tune is. Is this really possible? I'm still getting one either way just curious.
Appreciate 0
      12-23-2012, 05:50 AM   #6
alextremo
Captain
United_States
14
Rep
920
Posts

 
Drives: F10 550i
Join Date: Sep 2008
Location: USA

iTrader: (3)

What's up with that crazy curve? Any idea what caused those big dips and the waviness? Do you have a baseline before the tune was installed?
Appreciate 0
      12-24-2012, 11:19 AM   #7
XDEEDUBBX
Lieutenant Colonel
XDEEDUBBX's Avatar
26
Rep
1,715
Posts

 
Drives: 535I
Join Date: Mar 2009
Location: Los Angelz

iTrader: (11)

Lac, if you have it try and post your baseline dyno.
Appreciate 0
      12-24-2012, 01:18 PM   #8
bulldog x6
Major General
65
Rep
5,022
Posts

 
Drives: x6 panzer
Join Date: Oct 2008
Location: probably work

iTrader: (28)

Most likely due to the tune - the tune needs to be refined quite a bit to run with downpipes it seems but, with no other options out there yet (cobb soon?), looks like this is as good as its going to get. The E9X platform is so much more covered from a tuning point of view, the F10 needs some love!

Lacster, any plans for a FMIC upgrade?
Appreciate 0
      12-24-2012, 03:23 PM   #9
alextremo
Captain
United_States
14
Rep
920
Posts

 
Drives: F10 550i
Join Date: Sep 2008
Location: USA

iTrader: (3)

Quote:
Originally Posted by bulldog x6 View Post
Most likely due to the tune - the tune needs to be refined quite a bit to run with downpipes it seems but, with no other options out there yet (cobb soon?), looks like this is as good as its going to get. The E9X platform is so much more covered from a tuning point of view, the F10 needs some love!

Lacster, any plans for a FMIC upgrade?
If the baseline is tune only, I don't think it has to do with the DPs - the curve has the same shape with the dips and waves.
Appreciate 0
      12-24-2012, 03:53 PM   #10
LACSTER
Major General
192
Rep
8,195
Posts

 
Drives: Hybrid
Join Date: Nov 2007
Location: oc

iTrader: (64)

Quote:
Originally Posted by XDEEDUBBX View Post
Lac, if you have it try and post your baseline dyno.
Sorry I don't have any without the tune.

Quote:
Originally Posted by alextremo View Post
If the baseline is tune only, I don't think it has to do with the DPs - the curve has the same shape with the dips and waves.

When I sent the results to Andrew @ ar design he also was shocked about the dips and waves and emailed Terry as well.

I think Terry is working on some updates.
Appreciate 0
      12-26-2012, 01:43 PM   #11
the infamous...
Relapsed Bimmerpost Addict
the infamous...'s Avatar
United_States
435
Rep
17,533
Posts

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

iTrader: (0)

great review! thx 4 sharin
__________________


"simple is clean" -The ///ModFather
Appreciate 0
      12-26-2012, 03:01 PM   #12
Alan l.
Brigadier General
Alan l.'s Avatar
123
Rep
4,435
Posts

 
Drives: LCI M-Sport 550i
Join Date: Jun 2009
Location: East Coast

iTrader: (8)

looking at that graph makes me want a new tune asap.

Alan
__________________

2014 LCI 550i M Sport | 3D Design Front Spoiler | BMW Performance Black Grills | BMW Performance Trunk Lip | BMW Performance Diffuser | Painted Reflectors | Wincos 30% Tint | Supersprint Exhaust | ACSSprings | MORR VS8.2 Rims 20x10R and 20x9F | Michelin PSS Tires |||More Photos of my car here|||
Appreciate 0
      12-26-2012, 10:13 PM   #13
///M ARMY
Lieutenant Colonel
22
Rep
1,596
Posts

 
Drives: F80
Join Date: Jul 2012
Location: In your dreams

iTrader: (2)

Garage List
2015 BMW M3  [0.00]
Nice. Looks like it needs a tune
__________________
2015 BMW /// M3 BSM
Installed: ER Downpipes, IND Gloss Blacks Grills, BSM Reflectors, JB4 Stage 3, Meisterschaft GT2, MORR Wheels and etc....
Appreciate 0
      12-30-2012, 08:53 AM   #14
Alan l.
Brigadier General
Alan l.'s Avatar
123
Rep
4,435
Posts

 
Drives: LCI M-Sport 550i
Join Date: Jun 2009
Location: East Coast

iTrader: (8)

Lac,

Did Terry follow up about your roller coaster dyno? I hope he's really working on it some updates because that graph is HORRIBLE.

this is BB2407's dyno and he pretty much has the same mods as you but his graph isn't as wavy and he's making more power.
__________________

2014 LCI 550i M Sport | 3D Design Front Spoiler | BMW Performance Black Grills | BMW Performance Trunk Lip | BMW Performance Diffuser | Painted Reflectors | Wincos 30% Tint | Supersprint Exhaust | ACSSprings | MORR VS8.2 Rims 20x10R and 20x9F | Michelin PSS Tires |||More Photos of my car here|||

Last edited by Alan l.; 01-05-2013 at 08:14 AM.
Appreciate 0
      01-03-2013, 12:29 AM   #15
BigDeep1
First Lieutenant
5
Rep
365
Posts

 
Drives: 2011 535i Sport - P1, P2
Join Date: Sep 2012
Location: Irving, TX - Valley Ranch

iTrader: (0)

Could the extreme waves be a dyno error, or maybe a dyno user error?

There have been a couple of dynos out on the JB4 with the n55 in the F10, and I don't remember them being this choppy .
Appreciate 0
      01-09-2013, 10:58 PM   #16
MophoMan
2011 535i
0
Rep
57
Posts

 
Drives: 2011 535i
Join Date: Dec 2012
Location: Las Vegas, NV

iTrader: (1)

Garage List
2013 BMW X5 35i  [0.00]
2011 BMW 535i  [0.00]
Any experience with taking this to the dealer for repairs/service? Does it void it?
Appreciate 0
      01-09-2013, 11:35 PM   #17
omer
Lieutenant
United_States
6
Rep
418
Posts

 
Drives: 2013 535i xdrive Msport
Join Date: Jul 2012
Location: United States

iTrader: (0)

That's what I want to know to if it will F up the warranty. Also I think these down pipe should be a lot more cheaper then what they are selling for. The 400 dollar down pipe will work as good as the 900 dollars one. That's just my opinion and experience.
Appreciate 0
      01-09-2013, 11:38 PM   #18
LACSTER
Major General
192
Rep
8,195
Posts

 
Drives: Hybrid
Join Date: Nov 2007
Location: oc

iTrader: (64)

Quote:
Originally Posted by MophoMan View Post
Any experience with taking this to the dealer for repairs/service? Does it void it?
Quote:
Originally Posted by omer View Post
That's what I want to know to if it will F up the warranty. Also I think these down pipe should be a lot more cheaper then what they are selling for. The 400 dollar down pipe will work as good as the 900 dollars one. That's just my opinion and experience.
I haven't brought my car into service but from what I hear if you bring it in for an oil change you shouldn't have any problems but I will have to remove my tune first.
Appreciate 0
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 02:06 AM.




5post
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