GSC POWER-DIVISION Stainless Steel Exhaust Valves [HEAD DIAMETER 33.0MM +1 | TOTAL LENGTH 104.25MM | STEM DIAMETER 6.0MM] (SUBARU EJ20 & EJ257) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS