Air and Fuel› Superchargers, Turbochargers and Components

TiAL

QR 34mm Recirculating Blow-Off Valve

$278.95

SKU: QR-34mm

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Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The TiAL QR is a 34mm recirculating blow-off valve based on the popular TiAL Q model. It features a 1.34-inch recirculating outlet and is compatible with most DSM, Evolution, 3000GT/Stealth, and some Subaru models. The valve body and internal components are CNC-machined from 6061 aluminum alloy, and it features a large 1.98-inch (50.5mm) valve with a Viton O-ring seal.
Show original supplier description
The TiAL QR is a high-performance recirculating blow-off valve designed as a derivative of the popular TiAL Q model. This QR valve features a 34mm (1.34") recirculating outlet, making it compatible with a wide range of turbocharged and supercharged applications, including most DSM, Evolution, 3000GT/Stealth, and some Subaru models. Constructed with precision, the body and all internal components of the QR valve are CNC-machined from a durable 6061 aluminum alloy. It incorporates a large 1.98-inch (50.5mm) valve for efficient airflow management. The unique V-Band design aluminum mounting clamp ensures a clean appearance and uses Stainless Steel hardware for corrosion resistance. The valve seal utilizes a clamped Viton O-ring to prevent sticking, and the Teflon-lubricated, hard anodized-coated stem and guide ensure wear resistance. This blow-off valve includes a TiAL machined aluminum banjo-type air fitting with an oversized 10mm hose barb for quick actuator response. The actuator features a high-temp silicone, Nomex-reinforced diaphragm for extended durability. The QR valve also comes with a TiAL V-Band clamp and a V-Band weld flange for 2.5" tube intercooler pipes, with options for aluminum, mild steel, or stainless steel flanges. It is available in various color anodized aluminum finishes: Silver, Red, Blue, Purple, and Black. Spring pressure is selected based on idle vacuum, not desired boost level.

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 NumberQR-34mm
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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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