GTIII-5R is a successor model of T51 SPL BB; it is compact in size, but withstands over 800PS.
Highly reliable MHI high performance CHRA and highly durable aluminum forged impeller achieve high engine output and better engine response.
Replacement with T51R series turbine and the turbo kit using T51R is simple since both installation positions are the same. (Oil & Water inlet / outlet are designed for GTIII-5R).