Housing, Turbine, GTW3684R, T3 Undivided, .82 A/R, w/ T31 V-band

The GTW3684R turbine housing is purpose-built for enthusiasts running Garrett GTW Series turbochargers who demand a clean, efficient, and serviceable exhaust housing solution. Its undivided T3 design and V-band exit make it a favorite among builders seeking a robust, easy-to-install housing that pairs seamlessly with modern high-performance turbo setups. This housing is engineered for those who value both flow efficiency and long-term durability in demanding applications.

Specifications

• Turbine Housing Configuration: T3 Undivided
• A/R Ratio: .82
• Turbine Outlet: T31 (narrow) V-band
• Outlet Flange OD: 3.10″
• Flange Design: Double stepped flange, 2.5″ / T31 V-Band
• Garrett P/N: GTW3684R

Performance & Application

This T3 undivided turbine housing is designed for builders running a single-scroll exhaust setup who want efficient, unrestricted flow into the tur