Sorry to bring this thread back and jack it, but I think it answers my question I had I just wanted to confirm that. I'm going with ITB's gixxer 650 with plenum do to being turbo'd. Can I or do I need the TPS from the ITBS or can I just run just use the 300zx maf. I'm using SAFC 2 and MSD BTM. Thank youHashiriyaS14 wrote:Basically, it means that the ITB's are all attached to a Plenum (air chamber) which then is attached to the normal intake piping, and thus, MAF.