GLM Marine Complete Exhaust Manifold set compatible with 1990-2006 OMC Volvo Penta 5.0L 305 & 5.7L 350 with 11.3" Hi Risers. Replaces OEM #3862627

The seem better than the OEM but only time will tell. I must say I was impressed with these manifolds. They looked good and bolted together well. I have not really run them yet, the boat will not be in the water until spring. I have ran on a hose on the trailer and they stayed nice and cool with no leaks. I will update if needed. They have a additional drain plug in bottom of the manifolds which is nice. When I received them one of the Rrisers was missing hardware. I contacted the seller who Immediatly responded and had the missing hardware shipped to me. One note if you have additional items bolted to the risers like an oil filter bracket you may need longer hardware.

The media could not be loaded.  One of the risers has holes allowing water to spray out the outside through the casting. A simple pressure test would have found this at the factory. The seller drop ships these from Southern California. He did get another one shipped to me but didn’t have anything to say about selling me a bad part.

It came with 4 riser gaskets but no new bolts for manifold.