2018-2023 Mustang GT 5.0 TWIN Turbo COMPLETE Replacement AC Line KitThis is the full AC line kit we include with our 2018+ Mustang twin turbo systems. It includes the soft rubber hose, the hard line which attaches to your firewall and the custom machined billet fitting that attaches to the ac compressor. The long line will connect from the firewall to the A C condenser. If you purchased a used kit and need the full kit, this is exactly what you need. This kit fits 2018 2023 Ford 5. 0 Mustangs with our TWIN Turbo Kit