Go Fast Bits T9380 DV+ Diverter Valve for 2018-2025 VW Mk8 GTI/Golf R/Audi S3 S4

Vehicle Fitment

• 2022-2025 Volkswagen Golf GTI Mk8 2.0T EA888 EVO4
• 2022-2025 Volkswagen Golf R Mk8 2.0T EA888 EVO4
• 2021-2025 Volkswagen Arteon 2.0T EA888 EVO4
• 2019-2025 Volkswagen T-Roc R 2.0T
• 2020-2025 Audi S3 (8Y) 2.0T EA888 EVO4
• 2018-2023 Audi TT 45 TFSI (8S) 2.0T
• 2018-2025 Audi S4 (B9) 3.0T
• 2018-2025 Audi S5 (B9) 3.0T
• 2018-2025 Audi RS5 (B9) 2.9T
• 2020-2025 Audi S6 (C8) 3.0T
• 2020-2025 Audi S7 (C8) 3.0T
• 2020-2025 Skoda Octavia Mk4 2.0T EA888 EVO4

Fitment Notes

• For vehicles with Continental brand OEM diverter valves ONLY
• Does NOT fit vehicles with older Pierburg-style OEM diverter valves -- use GFB T9351 or T9352
• If using an aftermarket turbo from another vehicle (e.g., Golf R turbo in GTI), contact GFB to confirm fitment
• Complete replacement unit -- does NOT reuse OEM diverter valve components
• Integrated low-profile solenoid eliminates clearance issues
• Bolt pattern is NOT symmetrical -- ensure correct orientation during install
• Recirculating valve only -- does NOT vent to atmosphere

Features

• Complete replacement for Continental OEM diverter valve
• Patented pilot actuation -- progressive opening vs. binary OEM operation
• Integral machined piston seat eliminates boost leaks from uneven OEM plastic seats
• Replaces weak OEM plastic components with precision-machined metal
• Improved boost holding over factory valve
• Sharper throttle response and faster boost recovery between shifts
• Capable of handling upwards of 50 psi
• Viton piston face seal for reliable sealing
• Integrated low-profile solenoid with mounting bracket
• Retains factory ECU control -- no tune required
• ISO 9001 certified manufacturing
• Designed and manufactured in Australia
• Lifetime warranty

Specifications

• Part Number: T9380
• Brand: Go Fast Bits (GFB)
• Product Line: DV+ Diverter Valve
• Type: Pilot-Actuated Recirculating Diverter Valve
• Replaces: Continental brand OEM electronic diverter valve
• Solenoid: Integrated low-profile design
• Maximum Boost: 50+ psi
• Piston Seal: Viton
• Weight: 0.8 lbs
• UPC: 9328022008004

Included Components

• GFB DV+ T9380 diverter valve with integrated solenoid
• Solenoid mounting bracket
• Wiring connector/loom
• Mounting hardware (multiple screw types for various applications)
• Installation instructions

Product Description

The Go Fast Bits T9380 DV+ is a complete replacement diverter valve for late-model Volkswagen and Audi vehicles equipped with the newer Continental brand OEM electronic diverter valve. Applicable vehicles include the 2022-2025 VW Golf GTI and Golf R Mk8, 2021-2025 Arteon, 2019-2025 T-Roc R, 2020-2025 Audi S3 (8Y), 2018-2023 TT 45 TFSI (8S), 2018-2025 S4, S5, and RS5 (B9), 2020-2025 S6 and S7 (C8), and 2020-2025 Skoda Octavia Mk4 with EA888 EVO4, 2.9T, or 3.0T turbocharged engines. Unlike earlier-generation Pierburg OEM valves that could be disassembled and upgraded, the newer Continental valves require a complete unit replacement -- which is exactly what the T9380 provides. GFB's engineers found the OEM plastic-on-plastic valve seat in the Mk8 Golf R leaked 28 L/min at 1 Bar of boost, the largest OEM diverter valve leak they had measured. The T9380 solves this with a precision-machined integral piston seat and Viton face seal that ensure a proper seal regardless of the condition of the OEM mounting surface. The patented pilot actuation system replaces the factory's binary open/shut operation with progressive valve movement, smoothing power delivery during throttle modulation for sharper throttle response and faster boost recovery between gear shifts. An integrated low-profile solenoid eliminates clearance concerns and connects directly to the factory wiring harness -- no tune or ECU modifications required. The valve is capable of handling upwards of 50 psi for modified engines. Designed and manufactured in Australia under ISO 9001 certification and backed by GFB's Lifetime Warranty.