Mercruiser Chevy Marine 454 502 8.2 GLM Exhaust Manifolds 4" Risers Elbows

Description

58242
GLM Marine Exhaust Manifold Kit for Mercruiser (Not Volvo, OMC, or any other Manufacturer) 454 502 with 4" elbows
If your Engine is newer than 2000, 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.
Cast Iron
Fits:
1981-up to early 2000s Mercruiser only with Wet Joint
Includes:
2 exhaust manifolds
2 4" risers/elbows
gasket and bolt kit
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.