Some years back there was a popular modification that was being tried by us tinkering types of racers looking for that performance edge.
This modification involved popping the black flap on the AFM's top and moving the spring inside afew cogs and then reassembling/sealing the black top again.
The purpose of this mod was to facilitate a faster response of the "door" inside the AFM at a slower mass air speed passsing thru the AFM.
(Be forewarned that if you went to far, that is too many cog movements, it sent you into an "idle search" and you had to back off a cog or two.)
Has anyone been involved in this mod lately out there in ToyotaLand?
