Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - Cat-less headers and passing emissions

Aaron_blatherwick · 06-26-2013, 01:48 PM

I was wondering if anyone has gone with a cat-less header, but kept a cat in the front pipe and relocated the o2s to in front and behind that cat? And if it would pass emissions and or set a cat efficiency code or not?

06-26-2013, 01:48 PM	#1
Aaron_blatherwick Member Join Date: Mar 2013 Drives: 2013 Scion FR-S Whiteout Location: Spokane Valley WA Posts: 45 Thanks: 13 Thanked 4 Times in 3 Posts Mentioned: 3 Post(s)	Cat-less headers and passing emissions I was wondering if anyone has gone with a cat-less header, but kept a cat in the front pipe and relocated the o2s to in front and behind that cat? And if it would pass emissions and or set a cat efficiency code or not?