This is a near 40-year-old engine design after all, which first appeared in RB26 form back in 1989 with the R32 GT-R. And even in 2025 tuners all around the world are still developing upgrades ...

The most popular variant of the Nissan RB series engine is the RB26DETT, which is so-called because it has a 2.6 liter displacement, uses a dual-overhead cam with electronic fuel injection and ...