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Air and Fuel Superchargers, Turbochargers and Components

TiAL

V-Band Blow-Off Valve, 1.98-Inch

$456.56 $259.99 Save $196.57

SKU: Q.10B

In Stock
In Stock
Ships by Aug 31
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

It features a large 1.98-inch (50.5mm) valve and a V-Band design aluminum mounting clamp for a clean appearance. The valve seal uses a Viton O-ring, and the stem and guide are Teflon-lubricated and hard anodized for wear resistance.
Show original supplier description
This unit is recognized as the highest flowing blow-off valve on the market, suitable for both turbo-charged and super-charged applications, including those with Paxton and Vortec systems. The body and all internal components are precision CNC-machined from 6061 aluminum alloy, featuring a substantial 1.98-inch (50.5mm) valve. Construction details include a V-Band design aluminum mounting clamp with stainless steel hardware for durability and corrosion resistance. The valve seal is secured by a clamped Viton O-ring to prevent sticking or pulling away from the seat. For enhanced longevity and smooth operation, the valve stem and guide are Teflon-lubricated and hard anodize-coated. The actuator is equipped with a high-temperature silicone Nomex-reinforced diaphragm, and it includes a machined aluminum banjo-type air fitting with an oversized 10mm hose barb for rapid actuator response. An aluminum or mild steel weld base mounting flange is supplied with each unit, with stainless steel available as an upgrade. The use of 6061 aluminum allows for housing to be anodized in various colors, including Silver, Red, Blue, Purple, and Black. Through extensive research and development, TiAL has achieved a flow rate that is an impressive 60% greater than the original design, allowing for significantly more air to be blown off per cycle. Included with every TiAL Q BOV are the Q BOV Assembly, TiAL V-Band Clamp, V-Band Weld Flange, High Pressure O-Ring, and TiAL Air Fitting. This blow-off valve is capable of supporting up to 1,800hp and is offered with various springs for different vacuum levels, including a specific -2psi spring for supercharged applications.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandTiAL
Part NumberQ.10B
CategoryAir and Fuel

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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