Garrett GTX4088R Turbo, .95 A/R T4 Divided (Twin-Scroll) Turbine Housing

The Garrett GTX4088R is a dual ball bearing turbocharger engineered for enthusiasts chasing serious top-end power without sacrificing the responsiveness of a well-matched twin-scroll setup. Its .95 A/R T4 Divided turbine housing makes it the ideal centerpiece for high-output builds that demand both strong spool characteristics and sustained high-flow capability. This is a turbo built for those pushing well past stock power ceilings and into dedicated high-performance territory.

Specifications

• Compressor Wheel Inducer: 65.0mm
• Compressor Wheel Exducer: 88.4mm
• Compressor Wheel Trim: 54
• Compressor Housing: .72 A/R T04H Frame with 4″ Inlet (Ported shroud anti surge) and 2.5″ Outlet
• Turbine Wheel Inducer: 77.0mm
• Turbine Wheel Exducer: 68.0mm
• Turbine Wheel Trim: 78
• Turbine Housing: .95 A/R T4 Divided (Twin-Scroll) Inlet with 3″ V-Band Outlet
• Bearing System: Dual Ball Bearing
• HP Potential: 850HP+

Performance & Application

The GTX4088R is purpose-built for high-flow applications demanding responsive boost and sustained power delivery. Its twin-scroll .95 A/R turbine housing works with T4 divided exhaust manifolds to maintain pulse energy separation, improving spool response over an equivalent single-scroll configuration. The ported shroud anti-surge compressor housing extends the usable compressor map, supporting a broad powerband from spool-up through sustained high-boost operation. This turbo is suited to builds targeting serious horsepower gains where both response and top-end flow capacity are priorities.

Frequently Asked Questions

What HP can the GTX4088R support?

The GTX4088R has 850HP+ potential flow capacity.

Is the GTX4088R a ball bearing or journal bearing turbo?

The GTX4088R is a dual ball bearing turbocharger.

What turbine housing configuration does the GTX4088R use?

It uses a .95 A/R T4 Divided (Twin-Scroll) turbine housing with a 3″ V-Band outlet.

What is the compressor housing configuration on the GTX4088R?

The compressor housing is a .72 A/R T04H frame with a 4″ inlet featuring a ported shroud anti-surge design and a 2.5″ outlet.

For builds demanding true high-horsepower capability paired with twin-scroll responsiveness, the Garrett GTX4088R delivers a proven combination of flow capacity and boost control that serious performance applications require.