Making Sense of Your 2015 WRX Engine Bay

If you ever find yourself staring at a 2015 wrx engine bay, the first thing you'll probably notice is just how much changed from the previous generation. This was the year Subaru decided to move away from the aging EJ series engine for the WRX and introduced the FA20DIT. For some purists, it was a hard pill to swallow, but for the average person who likes to turn their own wrenches, it brought some pretty welcome changes. It's a busy-looking space, full of plastic covers, hoses, and that signature top-mount intercooler, but once you get past the initial clutter, everything starts to make a lot more sense. ...

February 7, 2026 · 6 min · Eliane Kimberlee