I have both these manifolds. Theyre for the d16z6, but i think the p08 is the jdm one?
They both have a nipple on the back for the purge hose to plug into(evap).
Anyone know for Sure... which one is better?

 

Better for what? Different designs are better for different things.

 

Better to put onto the head. Does1 of them have better air flow or something? They look identical to me...

 

Post pictures for comparison.

 

Did you not understand my question, or were you just being a smartass? Tone doesn't convey over text, so I'm resisting the urge to jump to a conclusion.

 

Um sorry? I just meant better as in, if i had to choose one for lets say, power gain( if possible) which one does that, didnt mean to upset you...

 

Oh and on the pics, the one with the throttle body attached is the p32

 

OK, that answers it then - you didn't understand my question.

Different runner lengths and sizes are better for different things. A long, skinny runner will give you better intake velocity, which translates to better low- to mid-range power, whereas a short, fat runner will allow the motor to suck in more air at higher RPM, giving you more upper-range power.

In all reality, you aren't going to notice any difference between either of them, but if I had to pick between the two, I would use the P08. The runners appear to be skinnier and longer, which will give you more useable power in a daily driven car. Posting a picture of both flanges would be helpful, though.

 

Good info

 

Some good info "NotARacist" thanks for sharing.

 

Honestly, it's a bit of an over-simplification...but the basic point is there, at least. It's why the Victor X and Performer X have different powerbands.

OP, looking at those two manifolds, it really is just six of one, half dozen of the other.