The stock twin turbos on the R32 GT-R RB26DETT spool well but run out of breath far too soon for serious builds. GReddy/Trust’s T5117Z 8cm² Dual Turbo Upgrade Kit (11520074) swaps in a matched pair of performance turbos that bring noticeably stronger mid-range torque, quicker boost response, and much higher overall power potential while keeping the car street-friendly with the right supporting mods.

This complete direct-replacement kit uses 8cm² (0.57 A/R) turbine housings for excellent drivability and includes every gasket and piece of hardware needed for a clean install. It’s a proven step up for owners wanting reliable gains without moving to a full single-turbo conversion.

At Terra Firma Automotive, we supply this genuine GReddy/Trust T5117Z kit, ready for R32 GT-R owners ready to unlock the RB26’s true potential.

 

• Matched pair of T5117Z turbos with 8cm² (0.57 A/R) turbine housings
• Direct bolt-on replacement for factory twin turbos
• Stronger mid-range pull and improved throttle response
• Supports 500+ horsepower with proper fuel and tuning
• Full set of gaskets and hardware included for straightforward installation
• Excellent balance between street manners and track performance
• Professional ECU tuning and fuel system upgrades recommended
• Built on GReddy’s decades of Skyline tuning experience
• Ideal upgrade before stepping up to larger singles
• ⚠️ 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.