ok this is yet another dumb question, but at least im admitting it in advance. i saw in a previous post, that some guy said to put a ITR head on a b16a2. how much more performance would that give the b16a2? what are the major advantages of doing this? Would the same effects be achieved by putting a GSR head on a b16a2? thanks btw, i typoed the topic of this post.....shoulda been ITR. crack kills.