I ordered & received the TransLab Valve Body (VB) Upgrade kit from OPT. Initially there was some confusion from the OPT staff regarding the actual contents of the kit, in particular, drill bits. Often VB kits will require the drilling of certain parts (e.g., the VB plate), making mere thousands of an inch difference. Most kits include the required bits, but this is one of the few kits that does not. Due to the small size of the required holes, I had to find a specialized tool shop that had the necessary small bits. While the costs of the bits was negligible, it was time consuming locating the bits.