Power log VS Headers

I think Im starting to understand (I've read that sticky 3 or 4 times now, just to pick up things I missed on), lol.

From what I can gather, headers give more power than plogs, but move the powerband (And the added power they add) up into the high rpm's, where it is more usable by a blown set up, because NA makes more power in the lower ranges. (Or perhaps better said, less power in the higher ranges than a supercharger since the faster the engine spins, the faster the s/c spins, and makes more boost/power.)

And while plogs also have that effect to a lesser extent, most of what they do is to just improve the flow of the front manifold which results in a smaller hp gain than headers, while the rear exhaust manifold already flows well enough (Talking about 2008 base).

The main reason I was confused in the first place is that I read in that sticky that NA wants a little bit a back pressure, so I figured that headers might be overkill just because they might flow TOO well and not give that little bit of desireable back pressure.

Am I anywhere close? lol :th_nervous:

n/a or blown, you really dont need back pressure. what you want is exhaust velocity. you dont want too big of pipes as to where the exhaust tumbles through them slow and turbulent. however, you can ask a lot of guys that put headers on their n/a GP and they will tell you that they gained power in the area they'd want: in the upper RPMs.

our engines inherently lack top end power. anything you can do to help that out will be good for you.