The ViperWerks-lemke hard top is designed to sit right over top of your existing convertible roof on your viper and latches in at the same location on the front windsheild. It takes about 3 minutes to install and is a must have if you want to keep your factory convertible roof in good condition or want to drive your Viper in the elements. it comes with a pre installed lexan rear window for ultimate clarity and comes pre sprayed in black primer so you can get it perfectly matched to your vehicle. It is compatible with both the factory coupe rear end as well as our couope rear end kits.