GLM Manifolds are Superior in the Aftermarket Marine Parts Industry.
Designed to Increase Performance, Reduce Back Pressure and Add More Horsepower to Your Engine!
Our fully tuned design guides exhaust gases directly to riser without turbulence and back pressure. This increases the engines performance up to 10%. In the meantime, an additional 40% water cooling area will decrease the entire manifold body temperature significantly
We are adding new part numbers daily. If you don't see what you need, please call or eMail us. We will be glad to help in any way! 800-821-1063 or btoc@internalengineparts.com THANK YOU for allowing us the opportunity to earn your business!
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