After 28 years of the EJ20 flat-four running Super GT, Subaru's swapping in a new boxer six for the 2026 BRZ GT300. The move signals a serious commitment to staying competitive in Japan's premier racing series, though details on displacement and output are still locked down. This is the first major powertrain shift for Subaru's GT300 program since 1998.

The flat-six that powered the SVX is getting a second life as a race engine in 2026, proving Subaru's willing to dig through its own history when it matters. The EG33 hasn't seen competition since 1996, but someone in Subaru's motorsport division apparently decided that heritage boxer engineering still has something to say on a racing circuit.