50mm Blow Off Valve

$280.00
$280.00

Blow-off valves play an important part of any forced induction system. The whole purpose is to vent off pressure to prevent a pressure surge from damaging the compressor blades on your turbo or centrifugal supercharger.

Designed with a two-piece Billet dome made from 6061 aluminum, and a black anodized finish.

Top reference ports are 1/8 inch NPT.

NEW FEATURE: Bottom 1/16 NPT Port, this will allow all you Centrifugal Supercharger guys to run a MAC valve to a third party controller (Holley, Boost Leash, Or AMS) to allow you to control your boost and utilize the Blow Off Valve as a Wastegate and assist you in fine tuning your target boost levels. 

Our weld on flanges are thicker than our competitors; we did this to help the DIY guy who is just learning how to weld, and also help with preventing warpage.

Customer Reviews

Based on 36 reviews
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A
Andrew
Everyone Should Strive for This Quality!

These pieces are amazing! I'm putting one on my 4th build this month. These things are absolute jewelry and work amazingly.

If you compare something as small as the clamp to the competitors you'll understand Nick's commitment to excellence

C
CB
50mm bov

Fast, easy shipping and product looks high quality!

T
Tj Savoy
Great

Best BOV on the market

G
Greg Schmidt - Bad Influence Garage
What an upgrade!

We have run the same BOV's for 3 years, they were an ok item and never thought twice about them. After a conversation or 3 with BSI, we said YES, lets make the change to these. Not only are these a better manufactured item, but they have the feature of a port UNDER the valve as well. This opened up options that we are now exploring for future ways to run our Turbo Program :) Thanks BSI for another GREAT product!

C
Charles Williams
50mm Blow Off Valve

Top Quality piece!
Fit and finish is great, operates silky smooth. The weld on flange is a better, heavier duty design compared to others and I didn’t worry about it warping during welding!
Highly recommend !