Just ordered my cattman headers for my 07 maxima
Silly question , will I need new catalytic converters or will the ones I have now be sufficient
I honestly forgot if they were welded together or not

 

yoo you made 3 of the same threads lool

 

Lol I no

My phone went crazy on me

 

Your not going to have cats except your y-pipe if it's stock

 

So how would I fix the CEL

 

lmaooo that sucks hopefully they go hidden so no one starts hatin on you like they always do -_- lol :P

 

i have no cats and i had the cat code so i put a non fouler on the o2 sensor and it went away right away to pass inspection

 

What size will I need

 

And how do I do it

 

go get the HELP! spark plug non fouler from napa. part number 42020, or remotely close to the first 3, drill one of the non fouler plugs out with a 1/2 inch drill bit. the one that you drill out will now go on your spark plug you wish to gap. take the second, non drilled non fouler and screw that onto the drilled out non fouler, which your o2 sensor is screwed into. now install that contraption you've created into the exhaust bung. dont touch upstream ones, those shouldnt be fooled with.