This T3 undivided turbine housing is engineered for builders pushing the GTW3684R (BB) and GTW3684JB turbochargers toward serious horsepower. With an extremely high flowing design, it’s built for enthusiasts who demand maximum output from their T3-flanged turbo and refuse to compromise on flow capacity. This is the housing of choice when big power is the only acceptable outcome.
Specifications
- Housing Type: T3 Undivided
- A/R Ratio: 1.08
- Fits Turbo: Garrett GTW3684R (BB) / GTW3684JB
- Outlet: 3″ GT V-Band with 81mm Groove
- T3 Inlet Flange (for Turbo Manifold) Product Code: ATP-FLS-038
- T3 Inlet Gasket Product Code: GRT-GSK-005
- V-Band 3″ GT Outlet Flange (for Downpipe) Product Code: ATP-FLS-246
- V-Band Outlet Clamp Product Code: CLC-CLA-048
Performance & Application
Designed specifically around the GTW3684R and GTW3684JB platform, this housing is built for high-boost applications where extreme flow is the priority. The 1.08 A/R strikes a balance intended to unlock big horsepower potential from a T3-flanged turbo without restricting the compressor’s capability. This is a housing for builders chasing maximum output rather than daily-driver responsiveness.
Compatibility & Fitment
- Fits Garrett GTW3684R (BB) turbocharger
- Fits Garrett GTW3684JB turbocharger
Frequently Asked Questions
- What turbos does this housing fit?
- This T3 undivided 1.08 A/R turbine housing fits the Garrett GTW3684R (BB) and GTW3684JB turbochargers.
- What is the A/R ratio of this housing?
- This turbine housing has a 1.08 A/R ratio.
- What outlet configuration does this housing use?
- It uses a 3″ GT V-band outlet with an 81mm groove.
- What inlet flange is needed for the turbo manifold?
- A T3 Inlet Flange is used for the turbo manifold connection, listed under product code ATP-FLS-038.
For builders demanding extreme flow and big horsepower from a T3-flanged GTW3684 turbo, this 1.08 A/R undivided housing is purpose-built to deliver.
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