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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N55 Turbo Engine / Drivetrain / Exhaust Modifications > High Flow Catted Downpipe w/ no CEL
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      10-24-2019, 10:13 AM   #45
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Quote:
Originally Posted by bluef32 View Post
I have an AR design catted dp also with ceramic coating. I got it installed about 5 months ago with about 3k miles on it so far. I haven't had any issues thus far. How is your AR design dp holding up?
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      11-07-2019, 02:40 AM   #46
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Quote:
Originally Posted by Tiago@VRSF View Post
Most of our customers have a CEL free experience with our downpipes but we've been working hard on our existing F chassis lineup and we should have a Euro6 standard catted option on the way for both the 3.5" and 4.0" models that will be guaranteed to pass inspection.

They'll be the same price as our existing options and should be ready for purchase Q1 2019.
Was the VSRF Catted DP refreshed? I'm in the market for one for a 2016 435i 6MT and at $400 for no CEL this seems like gold.
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      11-10-2019, 12:23 PM   #47
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I have a Fabspeed on mine for about 4k miles now. No cell so far. Made my exhaust come alive and I love the sound.

Kind of off-topic but question to those with catted DPs. I have mild burbles with louder pops on downshifts on mine (BM3) and I've search the forums but no clear answers. Is it really bad for my DP? I heard carbon can build up but since the 200 cel is less dense, would it make a difference?
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      11-12-2019, 02:46 PM   #48
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Quote:
Originally Posted by Dreizo View Post
Was the VSRF Catted DP refreshed? I'm in the market for one for a 2016 435i 6MT and at $400 for no CEL this seems like gold.
It is not guaranteed CEL Free at this time. If you want CEL Free, consider Fabspeed Sport Cat.
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      11-12-2019, 06:25 PM   #49
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Quote:
Originally Posted by Yungsta View Post
I have a Fabspeed on mine for about 4k miles now. No cell so far. Made my exhaust come alive and I love the sound.

Kind of off-topic but question to those with catted DPs. I have mild burbles with louder pops on downshifts on mine (BM3) and I've search the forums but no clear answers. Is it really bad for my DP? I heard carbon can build up but since the 200 cel is less dense, would it make a difference?
You are correct. I would not set burble on aggressive with any catted pipe
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      11-14-2019, 02:51 PM   #50
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I have the fabspeed high flow catted and it works great for me, no CELs and sounds great as well. I have been considering actually going full catless since I'm going to running an e40-e50 mix and also love the pops and bangs on the MHD tune!
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      11-14-2019, 05:10 PM   #51
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Quote:
Originally Posted by mike@x-ph.com View Post
Quote:
Originally Posted by Yungsta View Post
I have a Fabspeed on mine for about 4k miles now. No cell so far. Made my exhaust come alive and I love the sound.

Kind of off-topic but question to those with catted DPs. I have mild burbles with louder pops on downshifts on mine (BM3) and I've search the forums but no clear answers. Is it really bad for my DP? I heard carbon can build up but since the 200 cel is less dense, would it make a difference?
You are correct. I would not set burble on aggressive with any catted pipe
so what would be the best settings on Burbles with a catted DP? OEM?
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      11-15-2019, 11:08 AM   #52
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Quote:
Originally Posted by CRAMAZIN View Post
so what would be the best settings on Burbles with a catted DP? OEM?
I would keep it at bm3 default with OEM cats
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      11-15-2019, 01:45 PM   #53
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Quote:
Originally Posted by mike@x-ph.com View Post
I would keep it at bm3 default with OEM cats
What about with an aftermarket catted DP?
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      11-15-2019, 02:22 PM   #54
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Quote:
Originally Posted by CRAMAZIN View Post
What about with an aftermarket catted DP?
You can probably go a bit more aggressive on high flow cats but not on max burble
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