LS-M Marine Aluminum Exhaust Manifold System for GM 4.8, 5.3, 6.0, 6.2 

LS-M Marine Aluminum Exhaust Manifold system for GM LS BASED 4.8, 5.3, 6.0, 6.2

These Next generation NEW LS-M series Aluminum exhaust manifold system is a perfect complement to OEM GM LS based engine platforms up to the GM LSA of 550HP. The New LS-M Series Manifolds feature DUAL O2 sensor bung provisions mounted sleekly with one in each exhaust riser. The LS-M series exhaust system also features the ability to be plumbed for either fresh water or closed cooling options. 4" exhaust hose connection is standard. Yet another new feature of the LS-M manifolds is their corrosive hard anodizing feature to yet extend longevity in harsh environments. These manifolds were developed on OEM performance engines and are NOT for use with engines using a camshaft with more than .226 @ .050 Camshaft Duration.

ATTENTION** This Exhaust System is sold in a Painted Industrial finish. Installers will be required to apply further extensive aesthetic final detail finishing. The outside is ROUGH machine and sanded aluminum with Industrial grade painting. Additional Sanding, Polishing, Powder coating or Painting is the responsibility of the purchaser!