I was thinking of gutting my cats since we don't need them where I live but I dont want to kill my MPG so should I leave them be? Also I was thinking of replaceing muffler with just a straight pipe or glass back what that bother my mpg either? thanks

 

Tampering with/ altering the cat from manufactured specs/ or removing it is illegal and won't be discussed on here.

 

Allright well would replaceing muffler with a glasspack affect my MPG?

 

Not in all 50 states dumb ***. and gutting the cat will make your exaust better and give you a bit more low end torque however it will throw a CEL.

 

I have a feeling you won't last very long around here...

 

u cant be sayin that kinda stuff to a cf veteran man

 

Actually my friend you need to first chill on the tone next you are dead wrong on the laws surrounding cat convertors and emissions. Those laws are regulated by the Federal GOVT. States have the option of checking for it not setting the laws.

 

Oh and thread is closed since obviously we have two members that can't read the ruiles.