The Porsche 911T continued as the entry level 911 model for 1972 and 1973, below the contemporaneous 2.4L 911E and the 2.4L 911S. As with the E and S variants, Porsche would upgrade the 911T to a new, larger 2,341 cc (2.3 L) engine, commonly known as the "2.4 L" engine. With the power and torque increase, the 2.4-liter cars also got the newer and stronger transmission, identified as the 915 gearbox. Non-US versions (ROW), were carbureted and featured the Type 911/57 engine, rated at 130 hp. US-spec 911T's had engine Type 911/51 and featured mechanical fuel injection (MFI), and were rated at 140 hp. In early 1973, US-spec 911T's, often referred to with the 1973.5 model year or with a 911 T/E designation, were equipped with Bosch CIS fuel injection on the Type 911/91 engine (Type 911/96 with Sportomatic). This powertrain combination preserved the power output of the US-spec version at 140 hp, but with lower emissions. The 911T was produced as both a 2.4L 911T Coupe and a 2.4L 911T Targa. Vehicles from this period with significant modifications can be found in the 911T custom (1972 to 1973) market. For model year 1974, along with the introduction of the G-body 911, the "T" designation was dropped and the model was replaced with the 2.7L 911 base model.