DBA 98-06 WRX Upgrade to STi Calipers w/ Standard 170mm Handbrake Rear Slotted 4000 Series Rotor 2003-subaru-legacy-l Pocket porting removes excess OEM

Pocket porting removes excess OEM casting flash and the material underneath the valves

stainless steel

K&N cabin air filters help control odors while they help capture most mold

the OEM guides are pressed out and replaced in favor of Ferrea Copper Bronze valve guides that are shaped to improve airflow

thus reducing aeration Increased capacity and additional cooling fins to reduce oil temps

DBA 98-06 WRX Upgrade to STi Calipers w/ Standard 170mm Handbrake Rear Slotted 4000 Series Rotor 2003-subaru-legacy-l Pocket porting removes excess OEMDBA 98 06 WRX Upgrade to STi Calipers w Standard 170mm Handbrake Rear Slotted 4000 Series 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