This is a set (starboard and port side).  Came off our 2008 Malibu 247 LSV. They work on Malibu boats from 2007-2015 with the Monsoon or Hammerhead engine.  They also work on many other brands of boats that have Indmar engines.  They have been pressure tested (see attached picture of the receipt) and proven to have no cracks.

We no longer need them due to LS engine swap. These are rare and hard to find, You won't find them on Facebook Marketplace or craigslist.

Recommend running priority cooling system with these exhaust manifolds.  The cooling kit can be found on Bakes Online part number 495180 for about $120.  The kit reroutes the cooling system of the exhaust manifolds to help them run cooler and prevent overheating.  That is what we ran on out boat and why these are in such great shape.  Unfortunately, we no longer have the priority cooling kit we used with them.

Moomba, Malibu, Axis, Supreme, Mastercraft, Nautique, Centurion, ATX, MB Sports, Sanger, Supra, Tige