Everything I’ve purchased from SPE has been extremely well made and thought out. These transmission lines are no different. I spent $$$$ on a transmission from Suncoast Performance and the last thing I want is a failure because the OEM line sprung a leak which they are prone to do. Also - Not sure if any of you guys have replaced your lines yet but what should be an easy 1 hour job takes much longer because the rigid OEM lines can’t be fished between the motor and crossmember without jacking the motor up about 1” (I love my Ford but hate some of their engineers). The SPE lines are of excellent quality and the installation is very simple. Be careful when ordering the description is a little misleading (says 11-19) but you need to choose from the drop down menu if you have a 17-19 as the lines are longer and they mount to the transmission differently.