Firstly it is a header as in 1 not headers... Many people have had notable gain and mpg improvements(when driving correctly) with only a intake. There are dyno charts on fswerks for actual evidence. It is the first mod anyone here on the forum will probably suggest. I highly suggest the FSWERKS Cool Flo intake. Either that or steedas short ram intake, but I like the looks and performance of my FSWERKS much better. At one point I had only the CAI and it definitely makes a difference solely on its own.
Here is mine:
I never get tired of how good that engine bay looks
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