Porsche's 914/6 variant featured the 2.0 L air-cooled Type 901/3 flat-six engine from the 1967–1969 911T model. This was the least powerful flat-six in Porsche's lineup. Power output was 110 bhp (82 kW; 112 PS). The 914/6 models came with lower gear ratios and larger brakes to compensate for the greater weight and higher power output of the six-cylinder model. Slow sales and rising costs prompted Porsche to discontinue the 914/6 variant in 1972 after producing 3,351 of them. Today they are considered the most coveted of the series.