Do not know what car

來源: 於 2009-02-14 12:37:38 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

but V engine, each side manifold has one; two exhaust pipes, each pipe has one catalytical converter, and after each catalytical converter there is one HO2S. Total 4.