My car is a daily driver, 15k/year. I have the pro kit on my GXP 1.0" in the front, 1.3" in the back. I also have the Solo Street Race exhaust but it sits at the same height as the stock gxp exhaust. I also have splash guards which hang below the car quite a bit. Going over SMALL speed bumps, my splash guards always hit but I really dont mind since it's only my splash guards. I would never dream of going over any speed bump that even looked a little big and also any driveway that didnt look almost flat. One time I scraped the bottom of my car where the fender is and my car just got stuck on the concrete and I had to slowly back up. Believe me, i've had my fair share of illegal U-turns due to speed bumps or inclined driveways (you will too most likely). I've learned to memorize the streets that I frequently drive and now I have a general idea where the terrible driveways and speedbumps are. I have OCD, so I never take ANY CHANCES on speedbumps/driveways. But then again i'm also the kind of guy that parks the Solstice far far away and by itself whenever I go anywhere, and I NEVER take my car if I go to an amusement park or anywhere that I will be forced to park in between someone (disneyland, knotts, fairs etc). lol, if you park at certain places you're just ASKING for door dings.