Type-Q 50mm Universal Blow Off Valve

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  • Regular price $61.77
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BOVs contain a valve that allows the pressurized air in your intake piping to vent to either the atomosphere, or back into the pre-turbo intake pipe when the throttle is closed --- greatly reducing the risk of damage to the turbocharger, or intake piping, because where else is all that compressed air meant to go? Without a BOV, compressor surge can be a real problem on older, worn-out turbochargers --- resulting in premature turbo failure.

 Type-Q 50mm Universal Blow Off Valve

Available in 2psi - 12psi Springs

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.


For use on turbo-charged and super-charged applications (Paxton, Vortec, etc.). The body and all internal components are CNC-machined from 6061 aluminum alloy. It features a large 1.98 in (50.5mm) valve; we believe this is the largest valve available with the highest flow capacity.


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 our own 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.

A single Q BOV can support up to 1,800hp

Package includes:

Q Series BOV Assembly
TiAL V-band Clamp
V-band Weld Flange
TiAL Air Fitting
High-Pressure O-ring
Extra Spring

2psi spring is designed for supercharged application


Product Disclaimer: This product is not designed to meet any emissions/noise standards and is not for street or highway use. This product is not certified and may not be legal for use on emissions-controlled vehicles in any country/jurisdiction. Any other use, including recreational off-road use, may be in violation of local, state, and federal laws. Carrot Top Tuning does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the customer. Carrot Top Tuning will not ship CARB restricted products into CARB restricted areas under any circumstances. ***OFF-ROAD USE ONLY***