Well the price I quoted and I changed it, But they are a very "In Demand" Item. I called to Apsis and the man ( Jersey)who answered my call was very helpful. Apsis makes 2 types of splash-guards. the 'Hollow' and the solid. The solid is the one they plan on replacing the hollow type with. The solid needs a rubber gasket to be installed and a set of the new ones Per-Axel is $222.50 .
Now in the process of phasing out the old style so many people have ordered the hollow model that they are going to restart making them. (If you go to Apsis.com and click on the Corvette section and click on splash-guards, and scroll down to the last two photographs, you'll see my car exactly but with the Apsis splash-guards installed and that is the old style.
OK, now lets look at the whole Apsis splash-guards and what there is in the 'Issues' department. In the past, the hollow splash-guards on some ZO6 and the ZR-1 had the problem of scuffing the paint where they meet at the fender line. BUT, Apsis had gone back and re-engineered the hollow type and even at that, the regular C-5's never had this problem so if you have a plain 1997 to 2004 C5 these splash-guards won't affect you at all.
So I ordered a set of the old "hollow style" but "Jersey" only had a rear set, so he shipped them to me and I'm waiting for the next supply to come in so I can get my frond set. He said demand for these splash-guards was so high he can't keep any in stock ? After looking at all kinds of splash-guards, I decided that Apsis was no doubt the their splash-guards are without the best , most stylish on the market. So I'll have to get back to you on the installing them, once they get here. This is a really well run company and they have excellent customer service people there as well !