When the factory twins on the R32 GT-R start to run out of breath, many builders look for a step up without jumping straight to a single turbo conversion. The GReddy/Trust T5117Z 10cm² Dual Turbo Upgrade Kit (11520075) delivers exactly that — a matched pair of larger T51Z turbos that bring stronger top-end power and higher overall horsepower potential while remaining usable on the street and track.
This direct replacement kit features 10cm² (larger A/R) turbine housings for improved flow at higher boost levels and includes every gasket and hardware piece needed for a clean, straightforward install. With proper fueling, tuning, and supporting mods, it unlocks serious performance gains while keeping the characteristic RB26 twin-turbo character.
At Terra Firma Automotive, we supply this genuine GReddy/Trust T5117Z 10cm² Dual Turbo Upgrade Kit for R32 GT-R owners chasing the next level of RB26 performance.
- Matched pair of T5117Z turbos with 10cm² turbine housings
- Direct bolt-on replacement for factory twin turbos on R32 GT-R
- Increased top-end power and higher horsepower ceiling
- Stronger flow for big boost applications with supporting mods
- Full set of gaskets and installation hardware included
- Excellent upgrade path between stock and full single-turbo setups
- Maintains smooth drivability when properly tuned
- Professional ECU tuning and fuel system upgrades required
- Built on GReddy’s long heritage of Skyline performance
- Ideal for serious street, track, or drag RB26 builds
- ⚠️ Emissions / California Legal Disclaimer – Off-Road / Competition Use Only: This product is intended for off-road, competition, and track use only. It is not legal for sale or use on public roads or highways in California (or any other CARB-adopting state). For more information Click Here.
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