Quality 6.5" speakers that won't destroy a budget

[M-technik-3]

not for a BMW, but my tahoe that's non Bose but has a oem subwoofer.

Thanks Not looking to change out the head unit or anything like that yet.

[AndrewBird]

I've always really liked the way Infinity's sounded, and their Reference range is quite affordable.

[M-technik-3]

oh yeah forgot about them. had them in one of my e30's the do sound good, not shrilly.