they r called spacers u can get a set of 20 off ebay the cams is throwing the code cuz it is not tuned properly no the VAFC is not really considered tuning but it is in a way will it help u stop throwing that code NO but it will help u in tuning wen u want ur vtec to kick in and how long the power will be there just get it tuned and by a hondata that chipping ecu **** is some bull**** cuz it still going 2 b throwing that code especially since its obd2 chipping is the cheaper way of doing **** than just buying the important **** u need and mother****ers wonder y there car is running too damn rich or too damn lean after about 6 months then u going 2 back 2 square one wen all they had 2 do was not b cheap and go get the proper **** if u want 2 make real power do **** the right way not the half assed way