TiAL Sport Q Blow Off Valve




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Genuine TiAL Sport Q BOV is the first revision of the original TiAL blow off valve. The Q bolts up to any standard TiAL flange, no re-welding. This is the highest flowing BOV on the market and is offered with a variety of springs for different vacuum levels and a special spring specifically for supercharged vehicles. This TiAL BOV is available in all 5 colors- silver, red, blue, purple and black.

Shipping Times: 1-14 Days
We try to keep the most popular kits in stock, but if you need something quick and want to confirm, just give us a call directly!

What Spring Pressure Do I Need?
The spring pressure is determined by your vacuum at idle. It is not related to how much boost you want to run. Check what your vacuum is at idle and select the matching spring.

• 2 PSI (For Supercharger Only)
• 6 PSI (-8 to -11 in/Hg)
• 8 PSI (-12 to -15 in/Hg)
• 10 PSI (-16 to -19 in/Hg)
• 11 PSI (-20 to -21 in/Hg
• 12 PSI (-22 to -24 in/Hg)

Weld Flange Options:
Includes one weld flange for your intercooler pipe cut to mate to 2.5" tube. Available options are aluminum, mild steel and stainless steel.

Specs & Features:
• The body and all internal components are CNC-machined from 6061 aluminum alloy.
• Features a large 1.98" (50.5mm) valve.
• The V-Band 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.
• Includes a TiAL 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.
• Includes a weld base mounting flange (Aluminum, Mild Steel or Stainless Steel).
• 6061 aluminum allows the housing to be anodized with a selection of colors (Silver, Red, Blue, Purple, Black).
• Flows 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.
• A single Q BOV can support up to 1800 HP.

(1) Q Assembly
(1) TiAL V-Band Clamp
(1) V-Band Weld Flange
(1) TiAL Air Fitting
(1) High Pressure O-RingSee more TiAL Products
See more TiAL Products
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Customer Reviews

Based on 19 reviews
Matthew Parker (Wiggins, MS, US)
Tial BOV

Quick shipping, great packaging and awesome product!

angel soto (Duluth, GA, US)
Always parts on stock

Love this site for all your Dsm needs

Eli Quintanilla (North Las Vegas, NV, US)
Tial bov

Was great. Stm was very friendly and helped me out a bunch. The bov is very good. Very high quality. Have everything you need to install it

Shane Romano (Summit, NJ, US)
5 star because thanks for all the parts but long wait

Still waiting for it. I ordered it on 1/18/21. I’ll submit picture when it comes but stm helps out with all the specs for ur setup

Justin (Cincinnati, OH, US)


Cancer and Reproductive Harm