[nhhiep]

I installed 2 10" in my E90 and happy with the bass. However, the mid and high sound very "cheap" for my non-logic system.

Many people here replaced the rear with Infinity Kappa 42.7i . I can get this for around $100 shipped. my limit is around $200. anyone here use or suggest any other 4" set that would fit in the rear?

I don't want to replace the front because I don't want to take out the door.

Thanks