looking at my inlet its simalr 2to 1.3 but the shape of the metal around the port is different mine is kinda flat an the 1.3 has pointed but the holes 4 the studs look 2 be in right place mine has 2 unions 1 at each end 1 kinda in middle other to the underneath of manifold on an angle does this sound right for 1.3 .will some 1 let me email the pics so they can b put on here?