I posted this when i initial obtained my si i was bewildered for the reason that I believed only b16a2 was an si engine but will also The three's had been to. Nov 23, 2007 #eleven hey men Do not know this info is somewhere around the Discussion board but https://hondab16b16789.qodsblog.com/26880046/the-smart-trick-of-b16b-that-nobody-is-discussing