TB size
#5
RE: TB size
65 is just enough. THe thing is that if you just get the TB you really wont feel much of a difference. You should get a MAF and CAI at least. Also before you install the TB you should put some rags into the manifold and lightly port the opening so that there is a smooth transition into the manifold.
#7
RE: TB size
He's talking about the TB side of the intake...the opening is only ~60mm, so you'd need to enlarge it or a bigger TB will do nothing. Most aftermarket intakes have a 70mm or possibly bigger opening for the TB.
#9
RE: TB size
Basically. I use a permanent marker to color the part that needs to be removed. Put the gasket on and mark the parts that stick out (or in this case, stick in). Remove the gasket and just remove the part that's colored. Take your time and do it evenly. You can always remove more, but you can't put it back.