I would add that because I have the Technic harness, it is a simple matter to swap back and cut out the MS-8 and the JL amp and sub. I have gone back and fourth a few times to be certain that I'm hearing what I think I'm hearing. Yup, I am.
There was lots of opinions (Andy W, among them) that the stock drivers are pretty good. I think not (and the fact that Harmon, his employer, designed the L7 means his opinion cannot really be objective- not dissing Andy). They are okay. But just the switch to Focals for the front 3 channels (my first audio mod on this car) was an enormous improvement, and these are cheaper Focals. Even without any level changing or EQ tweaking the sound went from maybe a 4 to a 6 on a 1-10 scale.
An irony was that I sold my calibrated mics and mic amp that I used with trueRTA for calibration previously, as soon as I bought the MS-8. I wouldn't need those any longer, right? I sure don't need them in the house with Audyssey in my home theater.