The 4A-GE was a four-cylinder engine produced by Toyota from 1986 to 2002. It was available in both naturally aspirated and turbocharged forms, with the latter being more popular. The engine was originally developed for use in the Corolla, but it was also used in a number of other vehicles including the Celica, Levin, and MR2. In total, there were three different versions of the 4A-GE produced: the original 'big port' version, a 'small port' version which featured smaller intake and exhaust ports, and a 'TVIS' version which had variable intake valve timing. The engine was renowned for its high revving ability and reliability, making it a popular choice for tuners and racers alike.