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Tial Q Blow Off Valve 10psi Spring Blue Aluminum Flange - Universal

$265.00 $314.16

Q Series Blue Blow-Off Valve (Q.10B) by TiAL Sport®. Q is the first revision of the original TiAL BOV. The Q bolts up to any standard TiAL flange, no re-welding. This is the highest flowing BOV on the market. It's offered with a variety of springs for different vacuum levels and a special spring specifically for supercharged vehicles. TiAL Sport® are proud to bring to you their USA made, high-performance automotive products. Their main goal is to design, engineer, and manufacture the best possible products. They only create innovative designs and produce and deliver the highest level of product integrity. TiAL Sport® is looking forward to meeting and exceeding your high performance engine boosting systems needs.

Notes: For use on turbo-charged and super-charged applications (Paxton, Vortec, etc.)


Pipe Size: Flange cut for 2.5" IC pipe

Color: Blue

Spring Pressure: 10 psi

Thread: M10 x 1.0


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 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 TiAL Sportown 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

An aluminum or mild steel weld base mounting flange is furnished with each unit. Stainless Steel is available at an additional cost. The use of 6061 aluminum allows the housing to be anodized with a selection of colors

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

Color anodized aluminum options

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


Q Assembly

TiAL Vband Clamp

Vband Weld Flange

TiAL Air Fitting

High Pressure O-ring


Please verify compatibility before purchase. May require some modification for proper installation.

This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to