Turbine Housing, .64 A/R T25 Skyline RB26DETT application, used on 707160-5 and -10 + others

This Garrett .64 A/R turbine housing is purpose-built for the Nissan Skyline RB26DETT platform, designed for enthusiasts running or upgrading Garrett 707160-series turbochargers who need a housing that preserves factory manifold and downpipe compatibility. It’s the correct choice for builders who want proven OEM fitment with the flexibility to pair it with a range of turbine wheel options for different power goals.

Specifications

• A/R Ratio: .64
• Inlet Flange: T25 (not through hole)
• Wastegate Configuration: Internally gated
• Original Equipment For: Garrett P/N 707160-5 and 707160-10 turbochargers
• Turbine Wheel Selection Option 1: Standard, GT/GTX28
• Turbine Wheel Selection Option 2: GTX2967R or GTX2971R – 84trim Turbine Wheel
• Turbine Wheel Selection Option 3: GTX2971R – 90trim Turbine Wheel or GTX2976R

Performance & Application

This turbine housing is factory OEM equipment for the Skyline RB26DETT applications running Garrett 707160-5 and 707160-10 turbochargers, making it a direct-fit solution for stock or lightly modified RB26 setups. The internally gated design allows the housing to retain compatibility with the stock manifold and stock down-pipe, or an aftermarket stock-flanged, stock-location down-pipe, simplifying installation on OEM-based platforms. With multiple turbine wheel selection options available, this housing can be configured to support upgrade potential on high-boost applications while maintaining the stock exhaust architecture.

Compatibility & Fitment

• Nissan Skyline RB26DETT
• Garrett P/N 707160-5 turbocharger
• Garrett P/N 707160-10 turbocharger
• Compatible with Skyline RB26 stock manifold and stock down-pipe
• Compatible with aftermarket stock-flanged, stock-location down-pipe

Frequently Asked Questions

What is the A/R ratio of this turbine housing?

This turbine housing has a .64 A/R ratio.

What inlet flange does this housing use?

It uses a T25 inlet flange, and it is not a through-hole design.

Which turbochargers is this housing factory OEM for?

This housing is original equipment for Skyline RB26 turbo part numbers 707160-5 and 707160-10.

Can I keep my stock manifold and downpipe with this housing?

Yes, this housing is compatible with the Skyline RB26 stock manifold and stock down-pipe, or an aftermarket stock-flanged, stock-location down-pipe.

What turbine wheel options are available for this housing?

Turbine wheel selection includes Standard GT/GTX28, GTX2967R or GTX2971R with an 84trim turbine wheel, and GTX2971R with a 90trim turbine wheel or GTX2976R.

For RB26DETT owners running 707160-5 or 707160-10 turbochargers, this .64 A/R turbine housing delivers factory-correct fitment with the internally gated design and turbine wheel flexibility needed to scale power while keeping the stock exhaust system intact.