[Peter the Bear]

Ok I REALLY need some help on this issue. I'm fixing to buy some Meagan headers but I have some questions. What the heck is a antifouler and what does it do. also what are some problems that could go wrong with my warranty. I guess i really just want somebody to explain to me all the crap with aftermarket headers and how to do it correctly.

 

[blackdemon_tt]

My understanding of an anti-fouler is either a resistor cable or an extension adaptor to your O2 sensor which tricks the ECU into thinking that everything is OK with the air fuel mixture therefore not triggering a CEL. If you live in a state with emissions testing this may cause you to fail inspection. Will it impact your warranty, yes and no, if they find out then yes, if you need to take it in for any service you may need to revert back to stock and it will be covered with no issue. To ensure you're still covered you should read your warranty paperwork including the fine print at the bottom....