MerCruiser GM V6 (Models 185 and 205) 1983-Current Exhaust Systems Products PLATE-TURBULATOR #864838 $107.16 $117.50 Mercruiser V6 Cast Iron Exhaust Manifold & Riser Single Piece Conversion Kit #102979KIT-1 $1,646.80 PLATE & GASKET KT #8M0090726 $145.39 $159.42