The Garrett GTX4508R CHRA is a ball bearing cartridge engineered for serious high-boost racing applications where rapid response and massive top-end capacity are non-negotiable. Built for enthusiasts pushing well past stock power ceilings, this core delivers the durability and spool characteristics demanded by dedicated race builds. Choose the standard housing or the compact GT42 frame backplate option to match your specific packaging requirements.

Specifications

• Compressor Wheel Size: 45mm
• Turbine Wheel Size: 48mm
• Bearing Type: Ball Bearing
• HP Capacity: 700+ hp
• Garrett P/N: 451888-5045S

Performance & Application

The GTX4508R CHRA is built for high-boost racing applications that demand both rapid boost response and substantial power capacity. Its ball bearing design enables quicker spool-up compared to traditional bearing setups, making it well suited to competition environments where response under load is critical. This core is intended for builds targeting serious horsepower levels well beyond typical street applications.

Frequently Asked Questions

What HP can the GTX4508R CHRA support?

This CHRA delivers 700+ hp capacity.

Is this a ball bearing or journal bearing unit?

The GTX4508R CHRA uses a ball bearing design, which enables rapid boost response ideal for high-boost racing applications.

What size are the compressor and turbine wheels?

This unit features a 45mm compressor wheel and a 48mm turbine wheel.

What housing options are available?

This unit is available in a standard configuration or with the alternate compact GT42 frame backplate.

For racers who need proven ball bearing response and 700+ hp capacity in a single core, the Garrett GTX4508R CHRA is the calculated choice for pushing high-boost builds to their limit.