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RIVA Vacuum Port Adapter Simple, reliable vacuum and boost plumbing for performance engines. The RIVA Vacuum Port Adapter kit makes installing blow-off valves, fuel pressure regulators, boost gauges and other vacuum/boost accessories fast and secure. Direct bolt‑on design: Installs to the intake manifold without drilling, cutting or modification. Complete kit: Includes one 1/8" and one 1/4" brass barbed fitting plus a 'T' fitting for versatile routing. Durable materials: Brass fittings resist corrosion and provide leak‑free connections under boost. Universal fitment: Ideal for most aftermarket blow‑off valves, regulators and vacuum accessories. Whether you're upgrading engine management or adding boost monitoring, the RIVA Vacuum Port Adapter delivers a clean, professional installation and dependable vacuum/boost distribution.