High flow downpipes being created for the 550i

Jimefam · 03-17-2011, 01:20 AM

As some of you may have read previously I have been looking to modify my 550i since before I got it. Although the car in stock form is no slouch performance wise I still find it abit disconnected and sedate. Enter AR design, a company that already makes probably the finest downpipes for the N54 and N55 engines as well as several others. I contacted them to make me a pair of custom downpipes and luckily they were more than up for the challenge. I transported my car to Denver where they are located and they will have them done by the end of next week. I will post pictures and a sound clip and dyno as soon as I have the car back. I'm jumping the gun abit and probably should wait to post this till it was all done but I'm excited and I'm sure there are a few other people on here that would like to give their car a slightly more vocal and aggressive tone. Stay tuned!

alextremo · 03-17-2011, 06:49 AM

cidair · 03-17-2011, 08:18 AM

Wow, I´m looking forward to Your results.

JOHNBMWM5 · 03-17-2011, 11:06 AM

It will be interesting to see how much if any gains are to be made with this mod alone.

bobblehead · 03-17-2011, 02:05 PM

I see they a few have pics (for now) for your mod.

http://f10.5post.com/forums/showthread.php?t=502731

ghueser · 03-17-2011, 02:41 PM

I had to blink my eyes a couple of times!

The cats are located on the TOP Rear of the engine? That is unbeleivable.

Jimefam · 03-17-2011, 03:41 PM

Your right! Thanks bobblehead. Wish I would have washed the car it's filthy

03-17-2011, 01:20 AM	#1
Jimefam Second Lieutenant 12 Rep 226 Posts Drives: 2011 550I Msport Join Date: Jul 2010 Location: Cumming, Ga iTrader: (0)	High flow downpipes being created for the 550i As some of you may have read previously I have been looking to modify my 550i since before I got it. Although the car in stock form is no slouch performance wise I still find it abit disconnected and sedate. Enter AR design, a company that already makes probably the finest downpipes for the N54 and N55 engines as well as several others. I contacted them to make me a pair of custom downpipes and luckily they were more than up for the challenge. I transported my car to Denver where they are located and they will have them done by the end of next week. I will post pictures and a sound clip and dyno as soon as I have the car back. I'm jumping the gun abit and probably should wait to post this till it was all done but I'm excited and I'm sure there are a few other people on here that would like to give their car a slightly more vocal and aggressive tone. Stay tuned!
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03-17-2011, 06:49 AM	#2
alextremo Captain 49 Rep 966 Posts Drives: F10 550i Join Date: Sep 2008 Location: USA iTrader: (5)
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03-17-2011, 08:18 AM	#3
cidair cidair 83 Rep 516 Posts Drives: BMW 435d xDrive Join Date: Aug 2006 Location: Sweden iTrader: (0)	Wow, I´m looking forward to Your results. __________________ 2016 435d xDrive Previous:2019 M340i, 2014 335dx,2012 M5,2011 550ix,2008 M3,2007 330xd,2005 M5,2004 545iA,2000M5.
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03-17-2011, 11:06 AM	#4
JOHNBMWM5 Live for today tomorrow never comes 1989 Rep 9,498 Posts Drives: 2022 LCI Marina Bay Blue/ Smok Join Date: Jan 2008 Location: UK iTrader: (0)	It will be interesting to see how much if any gains are to be made with this mod alone. __________________ Live for now, life is too short. 2021 LCI M5 Marina Bay Blue/ Smoked White Leather
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03-17-2011, 02:05 PM	#5
bobblehead Brigadier General 256 Rep 4,721 Posts Drives: warp speed Join Date: Aug 2009 Location: Toronto, On iTrader: (0)	I see they a few have pics (for now) for your mod. http://f10.5post.com/forums/showthread.php?t=502731
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03-17-2011, 02:41 PM	#6
ghueser Lieutenant 36 Rep 519 Posts Drives: 2014 M5 Join Date: May 2010 Location: St. Louis iTrader: (0)	I had to blink my eyes a couple of times! The cats are located on the TOP Rear of the engine? That is unbeleivable.
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03-17-2011, 03:41 PM	#7
Jimefam Second Lieutenant 12 Rep 226 Posts Drives: 2011 550I Msport Join Date: Jul 2010 Location: Cumming, Ga iTrader: (0)	Your right! Thanks bobblehead. Wish I would have washed the car it's filthy
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