The Garrett GT55 turbine housing kit supplies an overhoused turbine housing specified as O/V 1.40 A/R for GT55 turbochargers. As a direct-fit housing option it provides the GT55 O/V 1.40 A/R turbine housing for applications requiring that A/R ratio, allowing installers to match turbine housing sizing without changing other turbo components.
Garrett GT55 Turbine Housing Kit O/V 1.40 A/R