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Kuku Performance | Listing Template
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OBX 40mm Type II Adjustable Blow Off Valve Red Universal Turbo Supercharger BOV
Complete your custom forced-induction setup with this red OBX Racing Sports Competition Type II 40mm blow off valve. Designed for universal turbocharged or supercharged applications, it features a two-bolt mounting flange, an external soft/hard spring-preload adjustment, a polished aluminum lower body and an additional spring. This is a universal performance component that requires measurement comparison, proper pressure-reference plumbing and custom installation.
- Brand / Part Number: OBX Racing Sports BV10261R (OBX Product ID 38-9999-10R; UPC 708036155656)
- Valve Size: 40mm nominal valve with an approximately 1.55-inch inlet opening ID
- Adjustment: External soft/hard adjuster changes spring preload; includes one installed spring and one additional loose spring
- Approximate Size: 4.9-inch valve body length, excluding the adjuster stud, with a 3.2-inch overall mounting-flange width
- Mounting Measurements: Approximately 2.67 inches from the outside edge of one mounting hole to the outside edge of the other; unthreaded holes accept a 1/4-inch bolt with a snug fit
- Discharge Port: Internally threaded port measuring approximately 2.1-inch OD and 1.75-inch ID; outlet thread size and pitch are unverified
- Reference Connection: Brass vacuum hose barb with an approximately 0.2-inch OD
- Finish: Red upper housing with a polished aluminum lower body
Fitment: Universal/custom installation for compatible turbocharger or supercharger systems. This valve is not assigned to any specific year, make or model. Before ordering, compare the listing photos and all dimensions with your charge-pipe flange, available clearance, manifold pressure/vacuum reference source after the throttle body and required discharge configuration. The approximately 2.67-inch mounting measurement is outside-edge to outside-edge, not center-to-center bolt spacing. A matching flange or custom fabrication may be required and is not included. Some draw-through MAF systems may require a recirculated configuration to avoid drivability issues.
What's Included: One assembled red OBX blow off valve, one additional spring, one flange gasket, one vacuum hose, one three-way barbed fitting, two mounting bolts, two nuts and two split lock washers. Only the components shown in the listing photos are included. Clamps, T-bolts, a weld-on charge-pipe flange, discharge horn and recirculation/outlet adapter are not included.
Please Note: OBX did not provide a spring rate, spring pressure or opening-vacuum specification for either spring, and those values have not been bench-tested by Kuku Performance. The top adjustment changes spring preload; it does not establish the spring's rate. We will not guess at maximum boost, horsepower capacity or opening vacuum. This valve is not advertised as a confirmed direct replacement for a GReddy valve or any other specific brand. Please use the actual product photos and measurements to determine whether it is appropriate for your setup.
Please review every photo and measurement before purchase. Professional installation and setup are strongly recommended. If you receive the valve and determine it will not work for your application, this listing is covered by our 30-day return policy; please return the complete kit in the same condition received.
California Proposition 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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We ship fast and we ship carefully.
- Orders are inspected, packaged, and ship same day or next business morning.
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Details & Notes
- Monitor settings and lighting may affect color appearance.
- Hardware/accessories are included only if shown or stated.
- Please verify measurements, specifications, and fitment before purchasing.
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