Hopefully someone can help.
So I just bought a 06 Mazda 6 and I was told when I bought it that the guy put a 2010 Mazda 3 motor in it. The 06 Mazda 6 stock has a 2.3L and the 2010 Mazda 3 has a 2.5. Now for one Im not 100% sure what motor is in it and I need to know. Theres a 2.5 stamped on...