SUPERTECH Sodium Filled Exhaust Valve [Head Diameter 32mm | Material Inconel-Nimonic/Sodium Filled | Groove Type Single | Length 117.1mm | Stem Diameter 5.465mm] (TOYOTA G16E-GR) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS