Intake and catted downpipe recommendations Please

SpartanWolf · 02-23-2026, 03:10 PM

Looking to install a catted downpipe and wish to pass emission test with no issues what are the best options out there? wish vrsf made a catted version as i have their charge pipe and intercooler

Also is the afe intake still the best option out there for our F10 N55 models??
Magnum FORCE Stage-2 Si Cold Air Intake System

thanks ahead of time

coasts · 02-25-2026, 01:37 AM

Honestly, I really don’t think that there is a catted DP that passes emissions for the F10….

Mine did not give a CEL, until it did

The only way to pass (illegally) is to find a tuner that can fake OBD readiness, but if you get caught, you’ll end up paying more than the downpipe.

Just swap it to stock whenever you have emissions, yes it sucks but its the only way.

02-23-2026, 03:10 PM	#1
SpartanWolf New Member 14 Rep 12 Posts Drives: F10 535i XDrive MSport Join Date: Dec 2018 Location: PA iTrader: (0)	Intake and catted downpipe recommendations Please Looking to install a catted downpipe and wish to pass emission test with no issues what are the best options out there? wish vrsf made a catted version as i have their charge pipe and intercooler Also is the afe intake still the best option out there for our F10 N55 models?? Magnum FORCE Stage-2 Si Cold Air Intake System thanks ahead of time
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02-25-2026, 01:37 AM	#2
coasts Enthusiast 74 Rep 107 Posts Drives: 2015 535i xDrive Join Date: Jun 2023 Location: Virginia iTrader: (0)	Honestly, I really don’t think that there is a catted DP that passes emissions for the F10…. Mine did not give a CEL, until it did The only way to pass (illegally) is to find a tuner that can fake OBD readiness, but if you get caught, you’ll end up paying more than the downpipe. Just swap it to stock whenever you have emissions, yes it sucks but its the only way. Last edited by coasts; 02-25-2026 at 01:37 AM..
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