DBA 2001 Subaru Impreza WRX STI 10 Stud Hole Rear Slotted 4000 Series Uni-Directional Rotor 2013-subaru-wrx-sti which cuts the aluminum to

which cuts the aluminum to a smooth

the heads undergo a cam clearance machining process that removes material from the lifter area where large duration cam profiles are known to contact the castings

By smoothing and blending this area under the valve seat

Inside the can

WeatherTech 03-08 Subaru Forester Front FloorLiner - Black

DBA 2001 Subaru Impreza WRX STI 10 Stud Hole Rear Slotted 4000 Series Uni-Directional Rotor 2013-subaru-wrx-sti which cuts the aluminum toDBA 2001 Subaru Impreza WRX STI 10 Stud Hole Rear Slotted 4000 Series Uni Directional Rotor DBA's 4000 Series T3 rotors feature our best technology and materials for maximum performance. High carbon & heat treated iron, patented Kangaroo Paw ventilation and Tri symmetrical slotting makes for the perfect direct replacement rotor