Tial Q50mm BOV

Tial’s Q is the latest generation of TiAL blow off valve. This is the highest flowing blow-off valve on the market. It’s offered with a variety of springs for different vacuum levels and a special spring specifically for supercharged vehicles.  The Q bolts right up to any standard TiAL or similar blow off valve flange, allowing you to upgrade without having to re-weld a charge pipe. Through countless hours of R&D, TiAL was able to make the same size valve flow a staggering 60% more than the original design! This is one of the highest quality and most durable/proven VTA BOV designs.