Right now my truck has CAI and flowmaster exhaust. Now I want a cam and headers. Which one would be best first? Eventually ill get both but one at a time for now. Its a 04 5.3 silverado.

 

Definitely get your headers first and get the exhaust flowing before you cam it.

 

headers

 

I did headers first. The cam hands down gave more power than the headers. But I already had the 2600 stall in place when I put the cam in so it wasn't a true apples-to-apples comparison. Personally I'd do cam and stall, then headers.

 

I agree do the headers first, but I did a cam first lol, but it's only a tiny cam...

 

I would do the headers first.

 

Headers!!!

 

Bang for the buck, I would do cam.

 

I would do supporting mods first then a cam. And i would ditched the flows. IMO

 

I would do a cam as well