This is probably going to be a dumb question but if i put long tubes on my 2000 5.4 what do i do about cats? Just slap some on after the collector? then what about the 02 sensors after the cats? would i just extend the wires off the sensors?

Thanks
Hunter

 

You can buy OBX long tubes with cats.
As for the O2 sensors, summit has nice extensions that I think are for mustangs, but work great. You will need to snip a small piece of plastic off of the connector to get it plug into the truck's. They are worth every penny compared to cutting and splicing.

 

You can buy OBX long tubes with cats.
As for the O2 sensors, summit has nice extensions that I think are for mustangs, but work great. You will need to snip a small piece of plastic off of the connector to get it plug into the truck's. They are worth every penny compared to cutting and splicing.

 

A shop will be able to fabricate Magnaflow hi-flow cats after the collectors for you if you buy a non-catted header kit. With you providing the cats, and O2 extensions as mentioned.