Turbocharger – Garrett GTX4508R 108mm (80mm) Regular (fullsize) Comp, Tial 1.30A/R SS

The Garrett GTX4508R represents the pinnacle of the GT45 ball bearing platform, engineered for serious race applications demanding massive top-end power without sacrificing the response benefits of ball bearing technology. Built for teams and enthusiasts chasing four-digit horsepower numbers, this turbocharger is the choice when nothing less than maximum flow and boost capacity will do. Its combination of a full-size compressor wheel and a high-flow Tial exhaust housing makes it a purpose-built weapon for extreme horsepower builds.

Specifications

• Compressor Wheel Inducer: 80 mm
• Compressor Wheel Exducer: 108 mm
• Compressor Wheel Trim: 55
• Compressor Housing A/R: 0.69
• Turbine Wheel Inducer: 87 mm
• Turbine Wheel Exducer: 80 mm
• Turbine Wheel Trim: 85
• Exhaust Housing A/R: 1.30
• Exhaust Housing Flange: Tial V-band, Stainless Steel
• Bearing System: Ball Bearing
• HP Capacity: 1400 HP
• Garrett P/N: 880704-5008S

Performance & Application

This unit is the latest evolution of the ball bearing GTX-R series within the GT45 range, delivering an even more efficient and potent package than previous generations. It is built to flow more horsepower and handle significantly more boost, making it a natural fit for race-focused builds pushing well past the 1000 HP mark. The ball bearing core, paired with the larger compressor and turbine wheels, is designed for teams who need reliable top-end power delivery on demanding race applications. The Tial exhaust housing configuration is tailored specifically for maximum flow and boost capacity where every bit of exhaust efficiency matters.

Frequently Asked Questions

What HP can the GTX4508R support?

The GTX4508R is rated to handle up to 1400 HP.

Is this a ball bearing or journal bearing turbo?

The GTX4508R uses a ball bearing core, part of Garrett’s ball bearing GTX-R series.

What is the compressor housing A/R ratio?

The compressor housing A/R on the GTX4508R is 0.69.

What exhaust housing configuration does this turbo use?

The GTX4508R features a 1.30 A/R Tial exhaust housing built for maximum flow and boost capacity on race applications.

For race teams and builders demanding uncompromising top-end power and boost capacity, the Garrett GTX4508R delivers the flow, durability, and ball bearing response needed to hit and hold four-digit horsepower.