New for 2008 is the first revision of the nine year old original TiAL BOV. The Q bolts right up to any standard TiAL flange so you can upgrade without having to re-weld. Through countless hours of R&D we were able to make the same size valve flow a staggering 60% more than the original design - that means 60% more air is blown off per cycle! This is the highest flowing BOV on the market!