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      01-17-2015, 12:31 PM   #1
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F25 (2013 X3 "m") exhaust conversion

I have seen 3 or 4 X3's (3.5) with a dual exhaust conversion, but cannot find a source. Can anyone help? I have attached a recent picture.
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      01-17-2015, 01:13 PM   #2
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There seems to be a Supersprint exhaust available with quad pipes -
http://www.supersprint.com/en/IT/pro...093E280BA.aspx
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      01-17-2015, 02:12 PM   #3
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Yes i saw one today supersprint exhaust and it sounds nice
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      01-17-2015, 05:05 PM   #4
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Maybe we can inquire with aFe or Remus to see if they have any planned quad exhaust for us and set up a group buy?
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      01-18-2015, 07:33 AM   #5
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Quote:
Originally Posted by The Bear View Post
I have seen 3 or 4 X3's (3.5) with a dual exhaust conversion, but cannot find a source. Can anyone help? I have attached a recent picture.
Attachment 1144271
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Wow that exhaust looks sweet! Looks like a custom build based on the m3 quad exhaust. Makes it look like the x5m:-)
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      01-20-2015, 09:39 PM   #6
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Supersprint can be found her

http://www.turnermotorsport.com/BMW-...and-parts.aspx

And Remus is another option. Bavauto and beemerzone both sell Remus for our cars. I would be curious to hear how it sounds. Supersprint is top notch in terms of quality and sound. However, I haven't been able to find msporT rear diffuser required to run dual exhaust.
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      01-20-2015, 10:03 PM   #7
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Quote:
Originally Posted by romanonj View Post
Supersprint can be found her

http://www.turnermotorsport.com/BMW-...and-parts.aspx

And Remus is another option. Bavauto and beemerzone both sell Remus for our cars. I would be curious to hear how it sounds. Supersprint is top notch in terms of quality and sound. However, I haven't been able to find msporT rear diffuser required to run dual exhaust.
Any body shop can remodel your bumper.
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      01-21-2015, 12:06 AM   #8
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Quote:
Originally Posted by mge.92 View Post
Any body shop can remodel your bumper.
Is that a body strip across the car? More full pics if so?
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      01-21-2015, 10:58 AM   #9
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Body strip? The lower bumper was sanded and plastic remodelled so it looks like it was molded from the factory then repainted.
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Last edited by mge92; 01-21-2015 at 02:34 PM..
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      01-21-2015, 01:52 PM   #10
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Quote:
Originally Posted by mge.92
Body strip? Will post more pictures later ... The lower bumper was sanded and plastic remodelled so it looks like it was molded from the factory then repainted.
Nice- anyone look at the X4 MPE?
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      01-21-2015, 02:49 PM   #11
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Quote:
Originally Posted by mge.92 View Post
Body strip? The lower bumper was sanded and plastic remodelled so it looks like it was molded from the factory then repainted.
I meant the while line seen next to the bmw logo on the rear if it's a paint racing strip.
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      01-21-2015, 02:54 PM   #12
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Quote:
Originally Posted by X4guy View Post
I meant the while line seen next to the bmw logo on the rear if it's a paint racing strip.
It is stripes I got from Stealthauto.com ... Its 3M vinyl.
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Last edited by mge92; 01-21-2015 at 04:44 PM..
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      01-22-2015, 10:54 AM   #13
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I researched and found a company called AI designs in NY that does the Supersprint exhaust installs for X3 and X4s. They will also trim the rear bumper section to accommodate the extra tips. They also lower and do performance upgrades. I'm getting pricing from them now to do a few things.

ask for Todd if you're interested.

Ai Design, Inc
64 Marbledale Road
Tuckahoe NY 10707
1-914-779-9000 voice
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      01-26-2016, 11:46 AM   #14
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Sorry to drag this thread up again...

But has anyone released an aftermarket Quad diffuser to beef up the rear end yet? Much like the one in the first picture.

I wonder if the Alpina XD3 would fit...
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      02-03-2016, 01:08 AM   #15
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Spring is in the air - at least in Sweden

Time to plan for spring upgrade. I can recommend M Performance Klappenshalldämpfer wih two modes - legal / illegal, remote controlled.

All INFO on X4 thread: "Anyone installed M Perf....." incl. youtube clip from Russian X4 with STD and Klappen.

Klappen is made solely for X4 35i M, but should, with a little adaption, fit on a X3 35i M.
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      10-15-2019, 01:31 PM   #16
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Reviving an old thread with a different solution.

I love the stock muffler sound of my X3 35i and don't intend to remove or replace the stock exhaust. Instead I am going to have a cutout installed (probably post resonator) and pipes routed as if I have a quad exhaust. Then a switch to the cabin and I can have the best of both worlds.

Mostly doing this because I ordered the Alpina rear diffuser and it comes with quad cutouts, but not looking to put on a remus/supersprint since I think a switched straight pipe is more versatile.
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      10-15-2019, 07:05 PM   #17
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What is the cost and source of the Alpina diffuser?
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      10-16-2019, 09:42 AM   #18
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Quote:
Originally Posted by doodlebro View Post
Reviving an old thread with a different solution.

I love the stock muffler sound of my X3 35i and don't intend to remove or replace the stock exhaust. Instead I am going to have a cutout installed (probably post resonator) and pipes routed as if I have a quad exhaust. Then a switch to the cabin and I can have the best of both worlds.

Mostly doing this because I ordered the Alpina rear diffuser and it comes with quad cutouts, but not looking to put on a remus/supersprint since I think a switched straight pipe is more versatile.
all taste are in nature hahaha Probably the worst exhaust sound I have ever heard on a 6 cylinder car. even with tgolf mod.
in fact its not the exhaust but how the engine is designed. We're a far from N54 sound, even N52 is way better.

My friend tried ton on exhaust on his M235, and after looking each video on youtube, he realized this is almost impossible to make it sound good. In a onther hand, the BMW did a insane job on the B58 sound.

Anyway, a cutout exhaust is the way to go !
love the sleeper option to make noise.
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