This T25 flanged internally gated turbine housing is built for Garrett GT25, GT28/GTX28, GTX29, and GT30R-WG turbocharger platforms, giving performance builders a dedicated housing option to match specific power and spool targets. It’s designed for enthusiasts running Garrett’s small-frame GT/GTX turbo family who need a proven T25 inlet and GT28-style outlet configuration without compromising on exhaust housing sizing choices. Whether you’re chasing quick spool or maximizing top-end flow, this housing lets you dial in the right A/R for your build.
Specifications
- Inlet Flange: T25
- Outlet Flange: 5 bolt GT28 style
- Wastegate Configuration: Internally gated
- Turbine Housing A/R Options: .64 A/R, .86 A/R, .64 A/R Ni Resist
Performance & Application
This turbine housing is engineered to work across Garrett’s GT25, GT28/GTX28, GTX29, and GT30R-WG series turbochargers, making it a versatile choice for builders standardizing on the T25 inlet and GT28-style outlet configuration. The .64 A/R option is suited to builds prioritizing fast spool and low-end response, while the .86 A/R option is intended for applications looking to maximize top-end exhaust flow. As an internally gated housing, it integrates wastegate control directly into the housing for a simplified, compact turbo system. This housing is best suited for enthusiasts building or upgrading small-frame Garrett GT/GTX turbo setups who need flexibility in A/R selection to match their specific power and response goals.
Compatibility & Fitment
- GT2554R (aka GT25R) — .64 A/R ONLY
- GT2860RS
- GT2871R
- GT2876R
- GTX2860R (Gen1/Gen2)
- GTX2863R (Gen1/Gen2)
- GTX2867R (Gen1/Gen2)
- GTX2871R (Gen1/Gen2)
- GTX2967R or GTX2971R — 84 Trim Turbine Wheel
- GTX2971R — 90 Trim Turbine Wheel
- GTX2976R
- GT3071R
- GT3076R-WG — 56.5mm & 84 Trim Turbine Wheel
- GT3076R-WG — 56.5mm & 90 Trim Turbine Wheel
- SPECIAL GT2854R (.64 A/R ONLY)
- GT2560R (aka GT28R) — .64 A/R ONLY
Frequently Asked Questions
- What inlet and outlet flanges does this turbine housing use?
- It uses a T25 inlet flange and a 5 bolt GT28-style outlet flange.
- Is this turbine housing internally or externally gated?
- This turbine housing is internally gated.
- What A/R options are available?
- This housing is available in .64 A/R, .86 A/R, and .64 A/R Ni Resist.
- What does GT25R or GT28R refer to?
- GT25R is an alias for the GT2554R, and GT28R is an alias for the GT2560R — both of which are compatible with this housing in .64 A/R only.
For builders standardizing on the T25/GT28-style small-frame Garrett platform, this internally gated turbine housing offers the exact fitment and A/R flexibility needed to match your turbo selection to your power goals.
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