The STM o2 housing gasket for Evo 3 and 1G/2G DSM is cut from T304 stainless steel, with a 20 gauge thickness and made in the USA! This gasket goes between your turbo and o2 housing.
Vehicle Fitment: • Fits Evo III 16G Turbo
Features: • T304 Stainless Steel • 20 Gauge Thickness • USA Made