i'm thinking of buying one of the two, what do you guys think?

also if you say header, do you think 4-1 or 4-2-1?

if pulleys, what brand?

 

Go with a header, much easier to install and you will notice more of a power gain...especially if you already have an intake and exhaust. Go with a 4-2-1, you might have clearence problems with both the ground and the crossmember with a 4-1. Also, this is my opinion, the b16 lacks bottom end power and the 4-1 really promotes this. You get significant mid-range gains with a 4-2-1.

 

thanx man. it has intake exhaust and fpr. header would finish it nicely. :D and add pulleys, even better!

 

I would go with the header, I would never add a crank pulley. They do more harm then good.

 

really, ok thanx guys. :D