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The only scraping you'll hear is from the air dams underneath the car which are just little pieces of rubber. I actually took mine off my car and have a little bit of a steeper driveway than you and don't scrape at all anymore
Measure the car's actual ride height and determine how much clearance you need to prevent damage. If up travel is available on the lowering bolts, raising the car could solve your problem.
The problem is when the wheels drop into the lowest part of the dip. The front of the spoiler will be 34.5 inches in front of that point. The front of the splitter will be ~ 5 5/8 inches above level ground at that point. It all depends on how deep the dip is and how steep the crown of the road is whether or not the splitter hits. Driving in and out at an angle can get it to clear but there is always the time when you forget or something is keeping you from doing that. My splitter was starting to get frayed from the driveway and getting up on my trailer so I added these skid plates http://protektskidplates.com/c7-gs-z06.html and they work great. A lot better than screwing up a $2000 part.
One thing you can do is download a cellphone app that measures slope angle. I had one for measuring ski slopes. Lay the cell phone down on the steepest part of the entry to the driveway. As I recall 9 degrees is about borderline.
Mitch here from Protekt skid plates. it looks like maybe a few of you guys could use some protection for your bumpers or splitters, and we have a thread going here in the forum about my parts.
We have them now for most modern Corvettes, including the base model C7, as well as the C7 with stage 2/3 aero.
Situations like this are exactly what I had in mind when I was making them in the first place, steep driveways and abrupt transitions, that you can't always avoid. They are particulary useful for you guys that have a scrape issue regularly, like at home, or work.
they are available on Amazon, as well as our website.
Don't think you will have a problem. Just had my new Grand Sport in for an alignment and my Stage 2 Splitter (same as Z06) cleared the alignment rack ramps by 1/2 inch! It was steeper than your driveway.
The only thing that might hit (if they do) are the rubber side air dams. They are designed to bend and are a great indicator (curb feeler) that the next thing to hit will be the "Skid Pads" or what GM calls the radiator supports. They are made from aluminum tubing.
My C6 hit the air dams every time I left my driveway. No big deal just sanded off the rough edge about once per year. My 2014 and now Grand Sport don't scrape the air dams if I leave slowly. I also hit and dented the C6 skid pads several times. On the 2014 I added FANG skid pad protectors (hit them a few times, but no damage) and just added those to my new Grand Sport.
I leave my air dams on as an early warning! They also help route air around the front tire that is a source of drag.
I take delivery of my 19Z06 with stage 3 carbon fiber splitter. Should I buy these for insurance just until I get my ProTEKt skid plate installed?
Even if you don't need it for your driveway (as it looks like it might be fine driving in at slow at an angle) you should install a "protector" for your carbon fiber Stage 2 aero package!
These are pics of my Scrape Armor protector. Installed in soon after I got my Grand Sport as had scraped the bottom of the CF splitter I installed on my 2014 Z51. This first scrape happened when I pulled into a step driveway in town slowly at and angle. But when I left could not back out slowly into traffic! Similar reason I installed FANGs for my aluminum skid pads. never would hit those as where there is a possible issue I pull into driveways slowly. However FedEx has a step driveway entrance and sometimes there is an AH who speeds up when I'm pulling in slowly and have to accelerate! It's happened several times. With the plastic FANGS covering the aluminum- no issue!
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