Adding OEM cats to catless setup

Mountain135 · 06-11-2016, 11:03 AM

Hi guys. I am running catless downpipes and catless Berk exhaust. I need to add cats to pass emissions and wondering the best way to do this with minimal effect on performance. This would probably be a permanent fix and not just temporary cats to pass emissions. Any advice would be appreciated.

Thanks,

John

Taskmaster · 06-11-2016, 01:57 PM

Swap in a mid section with Cats, or use highflow units.

Mountain135 · 06-15-2016, 06:06 PM

Got it. Thanks!

RyanDavies · 06-23-2016, 05:44 AM

Ciro racing 100 cell cat(s). Done.

06-11-2016, 11:03 AM	#1
Mountain135 Private First Class 16 Rep 107 Posts Drives: 2008 135 Coupe Join Date: Mar 2013 Location: Colorado iTrader: (0)	Adding OEM cats to catless setup Hi guys. I am running catless downpipes and catless Berk exhaust. I need to add cats to pass emissions and wondering the best way to do this with minimal effect on performance. This would probably be a permanent fix and not just temporary cats to pass emissions. Any advice would be appreciated. Thanks, John __________________ 2008 135i- Sparkling Graphite-Steptronic ESS Stage 3 Flash-BMS Dual Cones-Helix Intercooler-AR Design Catless Downpipe-Berk DP Back Full Street Exhaust-AR Design Oil Cooler-AR Design Catch Can-OS Giken LSD-Bilstein B12 Kit-Whiteline rear sub-frame bushing inserts. 225-255 Direzza Z2.
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06-11-2016, 01:57 PM	#2
Taskmaster Banned 2465 Rep 9,004 Posts Drives: M235i 6MT / E92 328 Msport 6MT Join Date: Nov 2013 Location: Florida iTrader: (6)	Swap in a mid section with Cats, or use highflow units.
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06-15-2016, 06:06 PM	#3
Mountain135 Private First Class 16 Rep 107 Posts Drives: 2008 135 Coupe Join Date: Mar 2013 Location: Colorado iTrader: (0)	Adding cats. Got it. Thanks! __________________ 2008 135i- Sparkling Graphite-Steptronic ESS Stage 3 Flash-BMS Dual Cones-Helix Intercooler-AR Design Catless Downpipe-Berk DP Back Full Street Exhaust-AR Design Oil Cooler-AR Design Catch Can-OS Giken LSD-Bilstein B12 Kit-Whiteline rear sub-frame bushing inserts. 225-255 Direzza Z2.
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06-23-2016, 05:44 AM	#4
RyanDavies Lieutenant 63 Rep 448 Posts Drives: 2012 128i MSport Join Date: Sep 2015 Location: Washington, DC iTrader: (2)	Ciro racing 100 cell cat(s). Done.
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