The shorter riser on these systems allows them to be used with EMI Silent Select systems as well as Mercury Silent Choice and other aftermarket selector systems. They also work well with Mercury "S" pipes. They are a direct replacement for stock Mercruiser manifolds in Bravo and Alpha applications where the exhaust outlets exit through the transom in the stock location. System for Big Block OR small block Chevy these are like brand new only idled for a hour and shutdown for winter 575.00 plus shipping WILL SHIP ANY WHERE IN THE WORLD.
you can contact me at 734-383-0730 or email me at [email protected]
http://www.eddiemarine.com/store/car...&p=13039&c=249