45 degree lambda sensor spacer-o2 oxygen catalyst converter for check engine light fix, universal mini cat

materials: adopt materials and national standards.avoid cracking and excessive thermal expansion. materials: adopt materials and national standards.avoid cracking and excessive thermal expansion. materials: adopt materials and national standards.avoid cracking and excessive thermal expansion. materials: adopt materials and national standards.avoid cracking and excessive thermal expansion. materials: adopt materials and national standards.avoid cracking and excessive thermal expansion..syi