Factory twin turbos on the RB26DETT limit serious power builds on the R32 GT-R. The GReddy Single Turbo Upgrade T78 SPL (11520038) transforms your Skyline into a high-output monster with a large T78 turbo, stainless steel exhaust manifold, external wastegate, downpipe, and full supporting hardware. This complete conversion kit replaces the restrictive twins with a single high-flow turbo that delivers massive top-end power, quicker spool than larger units, and the headroom needed for 600+ horsepower builds.
The T78 33D features a 42.7mm inducer, 17cm² A/R turbine housing, and Type R1.1 wastegate for precise boost control, paired with an 80mm Air Flow meter and dual Airinx intake conversion. Every component is engineered for direct installation and maximum durability under extreme boost and heat.
At Terra Firma Automotive, we supply this genuine GReddy T78 SPL Single Turbo Upgrade Kit as a complete high-performance solution for serious RB26DETT power upgrades on the R32 GT-R.
- Large single T78 SPL turbo (33D-15 C08) capable of 600+ horsepower
- Includes stainless steel exhaust manifold with external wastegate
- Full downpipe and dual Airinx intake conversion included
- 42.7mm inducer compressor with 17cm² turbine housing for strong mid-to-top end power
- Type R1.1 wastegate for precise boost control and reliability
- 80mm air flow meter for accurate tuning and fueling
- Significantly reduces lag compared to larger single turbos while outperforming stock twins
- Complete bolt-on style kit with all necessary hardware
- Designed for high-boost, high-power RB26DETT applications
- Proven GReddy upgrade trusted by record-setting R32 GT-R builds worldwide
- ⚠️ 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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