Indmar Marine Exhaust Elbow – Bank 1 Raised 1" Black | Part #585928-B This Catalyst Elbow is for serial number engines 204736 and up and Gasket part number 597095 Restore correct exhaust routing on Bank 1 of your Indmar engine with this genuine Indmar raised 1 inch exhaust elbow in black finish. The raised 1 inch design provides additional clearance above the standard elbow height — critical in engine bay configurations where standard height elbows create clearance issues with surrounding components. Compatible with: Indmar marine engines requiring Bank 1 raised exhaust elbow fitment on Malibu, Moomba, Supra, and Tige boats. Contact us to verify fitment before ordering.