i have an issue of zoom with the 8th sin supra on da front and they proove on dyno figure the rb20 plenum out does the gt r plenum doesnt make sense to me sorta confusing actually
but i can scan the dyno if ya doubt
Quote "at serious boost levels 1.2 bar the stock manifold made power then the gt-r manifold.this goes against everything we have ever found and most of what has ever been written"