Turbo XS HC15T-HYB-GRY Hybrid BOV for 2016-2021 Honda Civic Sport/Si & Accord

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.