The US-spec B18C1 was built into the Acura Integra GS-R and produced 170 horsepower at 7,600 rpm and 128 ft-lbs of torque. The Type-R was introduced in the United States in 1997, with the B18C5 engine producing 195 horsepower at 8,000 rpm and 130 ft-lbs of torque.