FatzFab Airbox Package for Ford Ranger PX Series 3 (2L)PX 3 (2L) Airbox Package The Ford PX Ranger series 3 Rangers 2L bi turbo engine is a very impressive unit for its size and the fitment of a Fatz built Airbox and plumbing package will only compliment the OEM Hardware. Our Airbox utilizes our Fatz built Air filters in a 7 long element, either in an 8 layer gauze or paper element. The 2l Ranger Airbox includes all the design features that make Fatz built Airboxes a first choice for off road vehicles.