Hey guys this my first time on here ,I'm just hoping u guys could help me out with a few tips. I have a 06 mazda 3 2.0l but I'm trying to upgrade to either the 2.0 ford EcoBoost or the regular ford 2.5 engine, but I wanna kno if I have to change my transmission as well along with the engine computer? Rite now I have a automatic transmission, but if have to change it,I would just go change to manual instead. Do this swap even make sense? Cause I wanna kno for sure tht it fit,because base on my research it seems like it will fit .