The Garrett GT28/GTX28 T3 undivided turbine housing with welded 3″ GT v-band flange is engineered for builders pushing GT28/GTX28-based turbochargers into serious power territory. Designed for enthusiasts who demand a clean, direct-fit connection to modern v-band exhaust systems, this housing delivers the flow characteristics needed to support high-output street and race applications. It’s the right choice for anyone upgrading their turbine-side plumbing without compromising on fitment or performance.
Specifications
- Turbine Housing Configuration: T3 undivided
- A/R Ratio: .63
- Turbine Inlet Flange: T3
- Turbine Outlet Flange: Welded 3″ GT v-band
- V-Band Center Ring Diameter: 81mm
- Outlet Flange OD: 90mm
- HP Capacity: 500+ HP
- Compatible Turbo Family: GT28/GTX28
Performance & Application
This turbine housing is built for GT28/GTX28 platform turbochargers used in high-performance street and motorsport builds. The undivided T3 configuration paired with a .63 A/R ratio delivers optimized flow characteristics suited to applications targeting 500+ horsepower. The welded 3″ GT v-band outlet with 81mm center ring simplifies integration into modern v-band downpipe and exhaust setups, making it a strong fit for builders prioritizing both performance and ease of installation.
Frequently Asked Questions
- What HP can this turbine housing support?
- This turbine housing supports applications up to 500+ HP.
- What is the A/R ratio of this housing?
- The A/R ratio is .63.
- Is this housing divided or undivided?
- This is a T3 undivided turbine housing.
- What type of outlet flange does this housing use?
- It features a welded 3″ GT v-band outlet flange with an 81mm center ring and a 90mm OD.
For builders running a GT28/GTX28 turbocharger who need a v-band-ready turbine housing capable of supporting serious horsepower, this .63 A/R T3 undivided housing delivers the flow and fitment precision the build demands.

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