The Mopar Windshield Header Channel Kit for JK Wranglers replaces the bent or broken version that you still have from the factory. Mopar has redesigned this from the original to prevent further bowing, but it installs the same way on factory soft tops. This channel works with all factory grade tops, original and the premium twill. If you are getting a lot of wind noise from the front or water leakage then you may benefit from a new header channel. The two-piece kit sandwiches the soft top fabric and creates a factory sealed look when latched at the windshield.