TiAL Q 50mm Blow-off valve
 
Tial’s Q is the latest generation of TiAL Blow off valve.  Supplied with a variety of springs for different vacuum levels and a special spring specifically for supercharged vehicles. 
The Q BOV 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! 
 
The body and all internal components are CNC-machined from 6061 aluminum alloy. It features a large 1.98 in (50.5mm) valve.
The V-Band design aluminum mounting clamp gives a very clean and unique appearance. The clamp is anodized and uses Stainless Steel hardware for a long lasting, corrosion-free appearance.
The valve seal utilizes a Viton O-ring that is clamped in place to prevent the possibility of sticking to the seat and pulling out. The valve stem and guide are Teflon-lubricated, hard anodize-coated for wear resistance.
The Blow Off Valve also comes with a machined aluminum banjo-type air fitting and bolt, with over sized 10mm hose barb for quick actuator response. The actuator has a high temp silicone Nomex-reinforced diaphragm for long life.
 
The TiAL Q Blow-off valve comes with;
Q BOV Assembly
TiAL V-Band Clamp
V-Band Weld Flange
High Pressure O-Ring
TiAL Air Fittings