Garrett Turbine housing Kit, G Series G40, 1.06 A/R, T4 divided entry, v-band exit, P/N: 757707-0034

This Garrett Turbine Housing Kit is built for G Series G40 turbocharger owners who need a precisely matched housing solution for their T4 divided entry setup. Designed for enthusiasts and builders who demand direct-fit hardware without guesswork, this kit pairs the correct A/R ratio with a complete set of flanges, gaskets, and clamps needed for installation. It’s the trusted choice for anyone building or upgrading a G40-based turbo system who wants OEM Garrett engineering backed by a full hardware kit.

Specifications

• A/R Ratio: 1.06
• Turbine Inlet: T4 divided entry
• Outlet: V-band exit
• Garrett P/N: 757707-0034
• T4 Turbine Inlet Flange, Divided, Stainless: ATP-FLS-057 (Mild steel option)
• Gasket, T4 (T04) Turbine Inlet – Divided: ATP-GSK-014
• V-Band Outlet Flange (for Downpipe): ATP-FLS-378
• V-Band Outlet Clamp: CLC-CLA-294

Performance & Application

This turbine housing kit is optimized for mid-range spool characteristics paired with efficient exhaust flow, making it well suited for G Series G40 applications where responsive power delivery matters. The T4 divided entry design supports pulse separation from the exhaust manifold, while the v-band exit allows for a clean, secure connection to the downpipe. Builders working with G40 turbochargers will find this housing kit delivers the correct flow characteristics for their setup without needing to source individual components separately.

Compatibility & Fitment

• Garrett G Series G40 turbochargers

What’s Included

• T4 Turbine Inlet Flange, Divided, Stainless (ATP-FLS-057), mild steel option available
• Gasket, T4 (T04) Turbine Inlet – Divided (ATP-GSK-014)
• V-Band Outlet Flange for Downpipe (ATP-FLS-378)
• V-Band Outlet Clamp (CLC-CLA-294)

Frequently Asked Questions

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

This kit features a 1.06 A/R ratio.

What type of turbine inlet does this housing use?

It uses a T4 divided entry configuration.

What type of outlet connection does this kit have?

The kit features a v-band exit for the outlet connection.

What turbocharger platform is this housing kit designed for?

This turbine housing kit is designed for Garrett G Series G40 applications.

For G40 builds demanding precise T4 divided entry flow and a clean v-band downpipe connection, this Garrett turbine housing kit delivers the complete, correctly matched hardware to get it done right.

Downloads

• Garrett Performance G Series G40 Sell Sheet