dont know what i should do.....looking to buy hooker shorty headers for my ride. the problem im having is my car has 2 cats with air, hookers will come with y pipe for 1 cat. i already have 3 inch flowmaster american thunder cat back installed.

im going to have a cat installed, should i go with 1 cat or 2.....ether way how am i going to do this? and what about my A.I.R system? remove it?

 

If you do not have visual inspection where you are I would replace your dual cat set-up with a 3" single cat. You will still be smog legal and you can still hook up your AIR if you get the right cat. You could also remove your AIR if you wanted to and run a cat without AIR. Your hedder selection has now broadened.