GLM Marine Cast Iron Exhaust Manifold Kit for Mercruiser 350 with 4 inch exit riser/elbows

If your Engine is newer than 2002, you likely have a Dry Joint Manifold and this Manifold will not work! Please review the image in the listing with your gasket to determine your type of manifold.  If you have any doubt, please send us a picture of your manifold prior to purchase.

Includes:

GLM's tuned manifold improves exhaust flow over the oe for better performance and economy as well as providing 40% more cooling surface area for a cooler running engine.

GLM offers a 3 year manufacturer's warranty.