It’s not uncommon for car manufacturers to make drastic changes to a new generation of cars, including changing an entire engine. Therefore, it didn’t come as a shock when Subaru announced that they will no longer be using the EJ20 engine in their WRX STi vehicles. The Japanese automotive company made the announcement during the 46th Tokyo Motor Show. This will be the final edition of the highly beloved Subaru WRX STi running on the horizontally opposed engine EJ20, one of Subaru’s leading sports engines, as orders close in December 2019 Many might be wondering what the big deal is about this engine. While very little is known or heard about the EJ20 engine, this is the driving force behind Subaru’s numerous victories in the World Rally Championship. It has been in production with Subaru since 1989 and while it mostly features in the…