The T31 V-Band Turbine Housing is built for enthusiasts running a T3-flanged Garrett turbo who want a clean, modern V-band exhaust outlet without sacrificing compatibility with proven turbine housing architecture. Whether you’re upgrading a GT28-series turbo or running a GT35, this housing bridges the gap between classic T3 manifold setups and contemporary V-band downpipe plumbing. It’s the right choice for builders who want flexibility in outlet configuration while keeping a familiar T3 inlet flange.
Specifications
- Inlet Flange: T3
- Standard Outlet Flange: T31 V-band flange outlet (2.5 inch)
- Optional Outlet Flange: Welded GT 3 inch V-band flange outlet with 81mm centering ring
- Optional Outlet Flange: Welded GT 3 inch 4 bolt flange outlet
- Turbine Housing Size: .63 A/R or .82 A/R
- V-Band Outlet Construction: Machined from 2.5 inch 4 bolt outlet pattern
Performance & Application
This turbine housing is designed for Garrett’s GT28 through GT35 turbo families, giving builders a way to standardize on a T3 inlet while choosing the outlet configuration that best suits their exhaust plumbing. The .63 A/R and .82 A/R options allow tuners to dial in spool characteristics versus top-end flow depending on the application. With the standard 2.5 inch T31 V-band outlet or the optional 3 inch V-band and 4-bolt configurations, this housing supports a wide range of downpipe and exhaust setups across multiple turbo platforms.
Compatibility & Fitment
- Garrett GT28
- Garrett GTX28
- Garrett GEN2 GTX28
- Garrett GTX29
- Garrett GT30R-WG
- Garrett GT30
- Garrett GTX30
- Garrett GEN2 GTX30
- Garrett GT35
- Garrett GTX35
- Garrett GEN2 GTX35
Frequently Asked Questions
- What inlet flange does this turbine housing use?
- This turbine housing uses a T3 inlet flange, compatible with T3 manifold setups.
- What A/R ratio options are available?
- This turbine housing is available in .63 A/R or .82 A/R.
- What is the standard outlet configuration?
- The standard outlet is a T31 short (compact) 2.5 inch V-Band outlet, which is machined from a 2.5 inch 4 bolt outlet pattern.
- Are there alternate outlet options besides the standard V-band?
- Yes, optional configurations include a welded GT 3 inch V-band flange outlet with an 81mm cent
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