K&N 77-1007KC K&N 2019+ Ford Ranger L4-2.3L Charge PipeK&N 77 1007KC K&N 2019+ Ford Ranger L4 2. 3L Charge Pipe K&N charge pipe kits are made of free flowing, mandrel bent aluminum tubes designed to replace the restrictive factory intercooler piping on specific turbo charged vehicles and offer a wide range of performance customization options. K&N charge pipes have been engineered to reduce turbo charged air pressure loss as well as dramatically increase air flow from the turbo through the intercooler.