How to pass inspection with decat/high flows
#1
How to pass inspection with decat/high flows
Hey all - Time has come to get the car inspected but the car is currently throwing a CEL and the emissions readings are coming back as INC since I have catted downpipes installed. Was planning on installing a 90 degree o2 sensor spacer to the downstream sensor. Has anyone tried this in the past? If so, could you share your experience and how you got it done? Would also like to hear from others on how they are able to pass inspection with decat/high flow cats.Thanks
#2
Super Member
Join Date: Jun 2021
Location: Fleriduh
Posts: 705
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W212 E63S Wagon - GSL580 - E63 - E350 - C300
You could do what I always did (when I was in Chicago)....title the car in a place with out such ignorant and delusional laws. Or, what I also did was rent (my) exhausts with full cats and what not....I used to rent out 997 Turbo and E46M3 units for folks who needed the moronic sticker.
It is still quite easy to just get Montana plates (or FL plates and on and on and on) and not worry about it.
It is still quite easy to just get Montana plates (or FL plates and on and on and on) and not worry about it.
#3
Member
Hey all - Time has come to get the car inspected but the car is currently throwing a CEL and the emissions readings are coming back as INC since I have catted downpipes installed. Was planning on installing a 90 degree o2 sensor spacer to the downstream sensor. Has anyone tried this in the past? If so, could you share your experience and how you got it done? Would also like to hear from others on how they are able to pass inspection with decat/high flow cats.Thanks
#5
Member
#7
Junior Member
Here in California I used O2 spacers also, the "mini cat" ones.
http://www.bigdaddiesgarage.com/mini-cat-cel-fix.html
http://www.bigdaddiesgarage.com/mini-cat-cel-fix.html