Catted down pipes and Check engine light

[SexyAvalancheGrey]

Thats your penalty for being some liberal *******..........lmao

 

[Nick@Apollo-Optics]

Technically that is a 50-state federal emissions law. Cats cannot be removed or replaced for 5yr/50k miles unless found to be defective.

Looks like I learned something new today. I guess the presence of CARB just makes that more heavily enforced in the state of California.

 

[Booth9999]

SPD Adapters and SPD Downpipes = NO CEL
SPD Adapters and Kooks Downpipes = CEL; Add O2 Extenders
Stock Adapters and Kooks Downpipes = NO CEL
Stainless Works Downpipes = CEL; Add O2 Extenders

Hope this helps!

If you'd like to explore your options, please let us know if we can help!

Hey Nick, so if I’m correct “if” I were to swap out my down pipes with some SPD down pipes I need to put on the spd turbo adaptors and not the o2 extenders or would it make sense to just put them on while the down pipes are off the truck? Is there a negative to adding the o2 extenders? Please message me an estimate of the cost you recommend, thanks in advance!

 

[Nick@Apollo-Optics]

Hey Nick, so if I’m correct “if” I were to swap out my down pipes with some SPD down pipes I need to put on the spd turbo adaptors and not the o2 extenders or would it make sense to just put them on while the down pipes are off the truck? Is there a negative to adding the o2 extenders? Please message me an estimate of the cost you recommend, thanks in advance!

Actually, with the SPD Downpipes and SPD Adapters, you would not need O2 extenders. The High-Flow cats used by SPD do not need the O2 extenders; they read normal.

 

[ruey220]

Are these cats allowing the cat ready monitors to be set? Im not getting a check engine light but my ready monitors are not setting for smog and my tuner suspects its the cats causing the issue

 

[Booth9999]

I haven’t had to smog yet. I’m following for more info.

 

[dsg2003mach1]

there is a VERY specific guide for setting all the monitoring, if you're having trouble getting them to set I would find that and follow it to the T and see what happens. No emissions here so no idea, I just know Im not throwing any lights