So I have an 09 legacy with an ej253 2.5i. I've only recently been researching subies and I love them. But my car doesn't have that rumble. Through research I've found that I can fit some uels on there but would have to get a whole new exhaust system. Others have said it should fit right in. I want to do this right the first way and not mess it up.
So I guess the questions are
1. What size UELs would fit my engine or how do I find that info?
2. Do I need to mess with the MAP sensor or any other components?
Be kind I'm still new to this. just trying to gain some knowledge. thanks to any and all who help.
