O2 sensors for my new exhaust

[Nijit]

I bought 2 hi flow cats for my new exhaust but they have no ports for O2 sensors. Suggestions anyone??

[r3v_v3ng3]

Either buy 2 O2 sensor bung and have it welded. Pretty sure your local muffler shop have them in stock and can put it in for you.

[LeggyxPower]

Or buy spark plug anti fouler for the rear o2 and have that one weled in that way did doesn't throw a code and the primary a o2 bung

[Zangado1]

That is the winning answer. I was pulling my hair out with the P0420 code until I bought the plug fowler from Napa. Never once had a code throw since I got that put on the rear 02 sensor. Better gas miles too all for less than $6.. http://www.napaonline.com/Catalog/CatalogItemDetail.aspx/Spark-Plug-Non-Fouler-Adapter/_/R-NDP7302442_0375753164 It has to be drilled out a little to make it work though.

[LeggyxPower]

That is the winning answer. I was pulling my hair out with the P0420 code until I bought the plug fowler from Napa. Never once had a code throw since I got that put on the rear 02 sensor. Better gas miles too all for less than $6.. http://www.napaonline.com/Catalog/CatalogItemDetail.aspx/Spark-Plug-Non-Fouler-Adapter/_/R-NDP7302442_0375753164 It has to be drilled out a little to make it work though.


https://www.youtube.com/watch?v=GqDmmLQ4pGk

there is a video explaining what to do. Because with your new High Flow cats your going to throw PO420 for "Catalyst System Efficiency Below Threshold" due to the high flow cats.

Regardless you will have to get bungs welded in