Vehicle Fitment

  • 2016–2021 Honda Civic Sport (1.5L Turbo)
  • 2017–2019 Honda Civic Si (1.5L Turbo)
  • 2018–2021 Honda Accord Sport (1.5L Turbo)

Features

  • Direct bolt-on replacement of OEM bypass valve
  • 44 mm piston with Viton O‑rings handling high boost and temperatures :contentReference[oaicite:1]{index=1}
  • Hybrid design allows recirculation + atmosphere venting (“°Psssh°” sound) :contentReference[oaicite:2]{index=2}
  • Made in USA, precision-machined 6061 aluminum body :contentReference[oaicite:3]{index=3}
  • Notched cap for easy hand adjustment
  • Piston inlet slot aligned with OEM outlet for smooth flow :contentReference[oaicite:4]{index=4}
  • Megaphone-style vent ports for enhanced sound :contentReference[oaicite:5]{index=5}
  • 304 stainless steel banjo fitting with low-profile 10 mm banjo bolt :contentReference[oaicite:6]{index=6}

Specifications

  • Part Number: HC15T‑HYB‑GRY
  • Piston Diameter: 44 mm
  • Body Material: 6061 aluminum, anodized gray
  • Seals: Viton O‑rings
  • Banjo Fitting: 10 mm 304 stainless steel
  • Mounting Holes: 3, OEM-compatible flange
  • Adjustable vent pressure setting, flange thickness: 8 mm :contentReference[oaicite:7]{index=7}

Included Components

  • 1x Turbo XS HC15T‑HYB‑GRY Hybrid Blow‑Off Valve
  • 1x Banjo fitting with bolt
  • 1x Mounting gasket
  • Mounting hardware kit
  • Instruction sheet

Product Description

The Turbo XS HC15T‑HYB‑GRY Hybrid BOV is a premium blow-off valve engineered for modern 1.5L turbo Honda engines—specifically the Civic Sport (2016–2021), Civic Si (2017–2019), and Accord Sport (2018–2021). Its 44 mm piston and Viton O‑rings are built to withstand higher boost pressures and outlet temperatures, delivering both reliable performance and that sought-after “°Psssh°” sound on shifts and throttle lift.

Crafted from anodized 6061 aluminum in the USA, this hybrid valve merges recirculating and vent-to-atmosphere functions for smooth operation and compliance-friendly behavior across OEM tune ranges. The precision-machined banjo fitting, notched cap design, and megaphone-style vent ports combine form and function—providing both striking aesthetics and functional performance gains.

Designed as a direct bolt-on replacement, the HC15T‑HYB‑GRY features OEM-aligned inflatable slots and includes all necessary gaskets and hardware for seamless installation. It’s non-CARB-legal, so not available in California. Made for enthusiasts who want improved sound, durability, and quick response without CEL or tuning complications.



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