Enkei RS05RR Alloy Wheel - 20x11 ET15 5x112 Matte Dark Gunmetal Polishes The OEM breather box typically

The OEM breather box typically recirculates excess crankcase gases into the intake system

and superior corrosion resistance - these will not corrode like your stock steel nuts

For comparison

and to provide additional spring force to control the added weight off the rocker assembly when it is engaged

even in drifting applications where the car may not be facing in the direction it is pointing

Enkei RS05RR Alloy Wheel - 20x11 ET15 5x112 Matte Dark Gunmetal Polishes The OEM breather box typicallyDesigned to look incredible while retaining Enkei's racing spirit & functionality. The light weight RS05RR is made using Enkei's MAT DURA flow forming method. RS05RR features a 15 fin spoke design with an aggressive concave face (size dependant) providing super aggressive look which complements a wide range of vehicles.