I vote ARH. They are what I'm going with when they make the GMT800 version, although, I was very happy with OBX on my old setup.

 

Unless your die hard racing, your not going to notice much gains between headers

John

 

Had no clue. I don't own a 08 so i never looked.
Same size primary for both, bigger collector/y-pipe for the pacesetters and no cats to get in the way so yes they flow better.
Doubt all you want, i own two trucks and i have had two dynatech systems in my possesion at one point and a pacesetter.
For ***** and giggles i swapped the pacesetters on my rcsb out the dynatechs. Went to the track with almost exact conditions by almost i mean very close but the dynatech night was a tad better. Like 1 degree cooler and the da was 3x better. Fairly close.
In the end every single spot of the track was run faster with the pacesetters.
Truck runs/ran very consistent never more than a half tenth off with all my runs when it hooks up.
This was enough to prove it to me. Take it for what it's worth. Ethier way doesn't effect you since you have a 08.
Oh and also dynatechs have a high price for the material they use and the catted system.

 

At this point it doesn't really matter how great paceaetters are b/c they don't fit my truck. The question still is AMH vs. Dyna's? Guess not that many people have experience with ARH b/c they are so new.

 

OBX fits the NNBS

 

Are sure they will fit a 4x4?

 

oh 4x4 i don't know, I saw someone in the nnbs section with obx on, i think it was 2wd though.

 

ARH will make them with a 3" collector if you want, see my post on page one of this thread

 

Anybody have any experience with JBA headers? Heard they make a good product, how do they measure up to the ARHs ad dyna's?

 

i have the pacesetters and am happy with them, If I was going to choose between ARH and dynatech I would go with the ARH, Dynatechs are good, but primary size is to small for me, and Im pretty sure that the ARH will be of a higher quality. Ive never seen dynatechs on a chevy, but I have seen a few sets on fords and I am not impressed for the cost of them.