Question: Will a high flow cat stop me from passing emissions inspection?

 

Not sure how they handle it in NY, but here in TX an AWD OBDII car just gets hooked up to the code scanner to ensure there are no faults in the system. Given some of the cars I've seen from your area, I don't think you have anything to worry about, though.

 

No...you're fine. Unless that suckers been hollowed out.

 

i cleared with perrin hfc

 

your Perrin didnt throw a CEL ?? cuz mine did

 

im a inspector... as long as the obd test says catalyst ready and you have no cel your fine... not ready or n/s will make you automatically fail

 

You'll pass as long as you don't have any cels. You would have to find a way to not throw a cel. There are a few methods.
I will be doing the non fouler method.

 

tephra patch has rear o2 disable... im going to test it out tomorrow and see if it passes

 

I'm in NY and I have a Works HFC - no CELs, no inspection issues.

 

as long as you don't have a cel light then I think your fine. My helix hfc throws a code so I'll just swap in my stock cat when I have to do inspection.

 

Go to a autoparts store and get a 02 Fouler, I think that's how you spell it, and you put it where you 02 goes on you high flow cat and the CEL goes away everytime. Or you can buy it on ebay. A under 20 dollar fix can save you from emmissions.. I've seen it everytime.

 

rear o2 disable seemed to pass... but i failed evap and egr lol

 

i think you will be fine. if there is no CEL than the emssions wont be a problem. if you get a hard time try to find a shop that does more performance cars. there are a few in my town that are really strict and there are others that pass you much easier.(not saying they do things illegallly). and to the guy with the evap problem..i had that too and it was some stupid plastic pipe that broke but i also have heard if the oring on the gas cap is messed up it can throw and EVAP CEL.

 

passed inspection with test pipe.

 

I recently passed with a test pipe, and anti-fouler trick.