Thank you for that feedback, very helpful.
I’ll plan on the JL amp (or Bimmertech, Match (now same as BavSound) - thoughts on these?) and some front speakers/tweeters. No idea how to choose or tune an amp. JL is cheaper and more powerful but missing the DSP and canned tune.
I don’t need much more bass so I thought the EPS woofers would be a modest and cheap PnP swap, same for the speakers. There are a ton for sale for cheap and some audiophiles say they’re actually pretty good. Otherwise I wont plan on swapping woofers or rear speakers at all.
Thanks again.
* This amp seems to be the same as the one on preorder from BavSound. Would probably work well with the components linked above. ~$1K for all of the hardware.
https://www.crutchfield.com/p_975UP7...SABEgJlnvD_BwE
$750
https://www.ebay.com/p/MATCH-up-7bmw...d767c0fff54b07
https://www.bavsound.com/Product/bmw...lifier-upgrade