iCollectStraws

I plan on ordering some DC Headers this weekend and was hoping I can get a quick opinion on the style selection. I'm stuck between deciding on the 4-2-1 One Piece style or the 4-1 One Piece style.
What I'm coming at is what are the advantages/disadvantages between the two, if any? I really don't see much and they're both the same price. Only difference I see is the looks, maybe someone can elaborate between the 2 styles?

If you'd like a link to the site I'm buying from for a better look, please ask.

trustdestruction

4-2-1 is for mid to top-end gains
4-1 is for top-end gains

search next time, you would get your answer a lot sooner


P.S. you only need one header. You drive an inline engine.