Nissan released the Datsun 280Z model for the North American market in the 1975 model year. In a further effort to keep the S30 models sporting in the face of increasingly stringent U.S. emission and safety requirements, engine size was again increased, this time to 2.8 liters. The L26 engine was bored out to create the L28, and a Bosch L-Jetronic fuel injection system was added. Canadian versions were uniquely equipped without the anti-smog components mandatory in the States. The model code is HS30, the same as for the original 240Z.