Long tube headers or high flow catted y pipe?

[TomB 1269]

Not sure where you're located but check your local emissions laws about cats. Here in the communist state of MA you have to have either OEM cats or a CARB certified cats. Which means no LTs here[emoji35]

NY is the same. However there is a work around. If the vehicle does not have different O2 sensors for CA emission vehicle then it will not have any effect changing out the Cats, particularly as there is no "sniff" test done they just hook up to you computer to test your emissions. There for as long as the PCs happy, and when visually inspected the Cats are in place, then you are fine. CATS are federally required.
The problem will be ordering them to our home.....You may have to ship them to an uncle and then have him ship them to you.

By the way NY not only requires CARB compliant, but aftermarket cats have to meet "Use of an EPA certified new aftermarket catalytic converter is still permitted on federally certified (not CARB or 50 state) and pre-1993 model year vehicles. Distribution centers located in New York State may continue to supply EPA certified aftermarket catalytic converters for applicable NYS vehicles and for sale outside of New York State."

 

[DieselMike29]

First and foremost, if anyone has work done to their exhaust and then gets smells inside the cab SOMETHING IS WRONG with the work that was done! The exhaust system is a closed system - yes, open at both ends, but not ANYWHERE in the middle.

Second, you would be better off doing everything at one time. Partially so you don't change something when you do the headers or exhaust first and then find that you must change it again after adding the intake oriented item(s) Mostly so that everything is there at one time and you get the biggest benefits possible.