This 7/8 inch OD new header was designed by Tony to be able to use a Dry Tuned Pipe concealed in the sponson area on a Catamaran or under the deck when used on a Classic Hydro. The headers design places it only 1 inch from the exhaust port and 1/2 inch to the left side stringer (rail). This allows for smaller canopies to fit or to be slightly modified to clear the header pipe.
This is a standard flanged header that will work with all Enforcer/RMB Dry Tuned Exhaust Pipes (internal o-rings) and Flange type double o-ring exhaust manifolds.