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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > VRSF Coupler Size



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      09-28-2015, 10:48 AM   #1
Unklejoe
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VRSF Coupler Size

Hello,

Does anyone know the size of the silicone coupler that the VRSF 5" stepped FMIC uses to connect to the turbo outlet pipe?

It looks to be a 2.75 to 2.5 reducer, but I'm not positive. I also would like to know the length.

Two reasons:

1. I kind of mangled my coupler with excessive hose clamp force (don't ask)
2. I feel like the turbo side could be a little "tighter". I think the outlet is more like a 2.25, but they supply a 2.5 coupler.

I found a 60mm to 70mm coupler, which should be a LITTLE tighter on the turbo side if this is the case.

Also, the length could be a tad longer (maybe an inch total). My clamp is right on the edge of the FMIC side.

The thing I'm really curious about is the size of the turbo outlet pipe. Can anyone confirm this?

Thanks
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      09-28-2015, 06:57 PM   #2
Tiago@VRSF
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Shoot over your order number & I'll have our guys send over a new straight coupler. We actually added about an inch to the straight coupler a couple months back
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      09-29-2015, 10:09 AM   #3
Unklejoe
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Quote:
Originally Posted by Tiago@VRSF View Post
Shoot over your order number & I'll have our guys send over a new straight coupler. We actually added about an inch to the straight coupler a couple months back
Now that's service!
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      09-30-2015, 08:04 AM   #4
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