i would recommend intake first. thats what i did

 

enough with the cat deletes, why do people obsess over this?

get yourself a high flow cat instead, same power gains as a test pipe

I would do for now intake, high flow cat, exhaust. An aftermarket header=expensive for what it offers IMO. Not getting a header=saves money and if you ever want to turbo you don't have to worry about selling it.

 

im not obsessing i have a dx the cat was in the manifold otherwise i would have kept it.