Special greases and coatings along with a high-quality silicone oil reduce friction and wear. This oil lubricates permanently and does not dry out.
Certain model specific cables are made longer (no more than 4.5cm longer than the oem cable). Please note this will not affect installation or usage on your vehicle, it is purposely done to fit a wider range of vehicles. Overall this actually lowers production costs making them cheaper for the end user.