Quote Originally Posted by Mr. Vteckidd
PRO Manifold is simply a redesign of the old manifold. Matter of fact you cant order the old manifold anymore, they discontinued it.

THe new manifold has slightly different runners an diameters. it all adds up tp about .0000001hp difference. there were tests on HT an the difference was negligible.

ive always been a BIG fan of the AEBS manifold, CHEAP, EFFECTIVE, etc.

Kteller.com sells them for like $175 WITH a HONDATA gasket
are those actual hondata gaskets . . not flaming him just for info . my buddy got a 2 of him on ebay and they both cracked instaled correctly of course .lol i put them on . some one advised him just to buy the hondata one . and BOOM no problem so far .