|
here in texas
it is illegal to replace anything befor the 02 sensor, and yeah our trucks sound likes shi* with the pipes off i had mine off for a day while working on (straight pipe resonator mod) and it sucked...plus hurts the gas mileage too. But technically ive always heard that if you remove cat no matter what its illegal and if you run straight pipe from the cat then its legal as long as you pass emissions
|