TiAL Q 50mm BOV
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
- 30 Day Money-Back Guarantee | IN STOCK
PROFILE
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 -10PSI spring perfect for the N54 application. Which is paired with our TiAL Flange Charge Pipe.
CONSTRUCTION
- 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.
- 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 our own machined aluminum banjo-type air fitting and bolt, with oversized 10 mm 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.
- A single Q BOV can support up to 1,800hp
- 10PSI Spring
IN THE BOX

Included with every Tial Q:
Q Assembly
TiAL Vband Clamp
TiAL Air Fitting
High Pressure O-ring

TiAL Designed V-Band Clamps are manufactured in house.
CNC-machined aluminum clamps ensure a secure and pressure tight fit.
CONFIGURATION
| Q BOV | Option |
| Flange Materials | Aluminum |
| Pipe Size | Flange cut for 2.5" IC pipe |
| Colors | Black |
| Spring Pressures | 10psi |
| Thread | M10 x 1.0 |
FITMENT GUIDE
With our TiAL Flange Charge Pipe
| Make | Chassis | Model | Engine |
|---|---|---|---|
| BMW | E60 | 535i | N54 3.0L |
| BMW | E88 | 135i | N54 3.0L |
| BMW | E90 | 335i | N54 3.0L |
| BMW | E92 | 335i | N54 3.0L |
| BMW | E93 | 335i | N54 3.0L |
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.
