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Nitrous Pro Flow Manifold Pressure Relief Valves 333221

Manifold, Pressure Relief Valve, 75-90 psi., Each

Estimated Ship Date: Today Would you rather pick it up? Select Location

Brand: Wilson Manifolds

Manufacturer's Part Number: 333221

Part Type: Manifold Burst Panels

Product Line: Nitrous Pro Flow Manifold Pressure Relief Valves

Summit Racing Part Number: WSN-333221

Pressure Range (psi): 75-90

Quantity: Sold individually.

Notes: The parts are spring-oaded, fully CNC-machined, anodized, and O-ringed to seal to the manifold. Pressure starts to bleed off at 35 psi.

In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

Nitrous Pro Flow manifold pressure relief valves provide the racer with the safest and best performing nitrous systems in the world. These reusable pressure relief valves eliminate races lost at the line, since they immediately reset for small backfires. This keeps you on the track after a backfire, rather than having to replace a burst panel. Naturally aspirated engines can benefit as well, particularly when using O2 sensors, which often cause backfire upon engine shutdown. The panel features a 1.25 in. hole that allows for the venting of excessive pressure, whether it is from a nitrous backfire or a naturally aspirated hiccup. They're excellent insurance to protect expensive carbs, throttle bodies, and intake manifolds. These valves are fully CNC-machined, anodized, and O-ringed to seal to the manifold.


Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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