They're awesome and that's about it. They really add to the appearance of the engine compartment. For me, I have the chrome valve covers and polished air intake, and all together, I love it. CJ's did the installation and I have nothing but positive things to say about the experience. Price - if you want it, and I did, you'll pay the price, but boy they sure do look nice. Look for me at Ocean City, MD during the Cruising OC week and I'll be proud to let you check them out.