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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > Australia > Dual 3" Stainless Steel Exhaust



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      11-30-2021, 05:32 PM   #1
Coupes33
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Dual 3" Stainless Steel Exhaust

I have recently had a custom dual 3" stainless steel exhaust fabricated by Men at Work Exhaust at Capalaba in Qld. Mick did an excellent job. The mufflers are angled due to the protruding plastic insert in the boot. I have since modified this by removing the bottom 3" and have booked the car in to have the mufflers repositioned horizontally. The 4 joins use 'V' band clamps which make it easy to dismantle. I have removed the diff since getting this exhaust and it was just a matter of removing the centre section to complete the job. 100cpsi catalytic converters have been installed.

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      11-30-2021, 10:35 PM   #2
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Looks good. Interesting that you went with a dual 3" all the way, rather than a merge collector into a 3-3.5" pipe like the VRSF exhausts. How's the smell on pump fuel with these cats?
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      11-30-2021, 10:52 PM   #3
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Quote:
Originally Posted by jzx_andy View Post
Looks good. Interesting that you went with a dual 3" all the way, rather than a merge collector into a 3-3.5" pipe like the VRSF exhausts. How's the smell on pump fuel with these cats?
No issue with the smell of fuel. The reason I went dual 3" pipes is that there is more horsepower gain than a single 3" pipe as shown by the diagram below.

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      12-01-2021, 03:53 AM   #4
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Very nice looking exhaust.
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      12-01-2021, 03:57 AM   #5
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sweet as Coupes....how does it sound?
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      12-01-2021, 02:33 PM   #6
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Originally Posted by Brule View Post
Very nice looking exhaust.
Thanks Brule. When I get my built engine installed and tuned, I will see if it makes any difference on the strip. Hopefully, the top end speed should improve as well as the turbos should spool quicker. What have you been up to? Any new mods?
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      12-01-2021, 02:37 PM   #7
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Quote:
Originally Posted by Socket View Post
sweet as Coupes....how does it sound?
Thanks Socks. I will make a video and put it on here. It is ok from inside the car apart from when it is under load at around 1,800rpm and it then gets a bit of a drone. Forum is fairly quiet over the last couple of months for some reason.
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      12-01-2021, 02:43 PM   #8
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Quote:
Originally Posted by Coupes33 View Post
Thanks Brule. When I get my built engine installed and tuned, I will see if it makes any difference on the strip. Hopefully, the top end speed should improve as well as the turbos should spool quicker. What have you been up to? Any new mods?
No mods.

Car is sitting with no turbo.

I am finishing building 100m2 shed before buying any more car parts.

If your out of turbo it might help get 1 or 2mph.
If not is still a very nice exhaust.
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      12-01-2021, 11:26 PM   #9
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Quote:
Originally Posted by Coupes33 View Post
Thanks Socks. I will make a video and put it on here. It is ok from inside the car apart from when it is under load at around 1,800rpm and it then gets a bit of a drone. Forum is fairly quiet over the last couple of months for some reason.
Great... send me the link when ur done

Yep most of the community has turned into P platers and are running around on FB hahaha.... my modding has slowed right down, other then playing around with the car audio side.... I should probably update the build thread
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      12-02-2021, 02:39 AM   #10
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I'm still here but yeah man it's quiet and I don't fancy Facebook and all the drama
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      12-14-2021, 03:52 AM   #11
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I got the mufflers flattened out today which makes it look heaps better from behind the car.

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      12-19-2021, 03:29 PM   #12
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Quote:
Originally Posted by Coupes33 View Post
I got the mufflers flattened out today which makes it look heaps better from behind the car.

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Nice exhaust Coupes
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      12-20-2021, 04:24 PM   #13
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Quote:
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Nice exhaust Coupes
Thanks Hoper. It gets a bit of a drone between 1,700-1,900rpm which isn't a problem when driving around the city in D. Hopefully, it should improve the performance.
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