Need to know what thermostat housing you have. 2 or 4 hoses leaving the housing.
My dads boat had the stock Mercruser Exhaust Manifolds on it with teh S pipes. Do you have to change any of the plumbing to switch to the EMI Thunders? Or does it all hook up the same way?
Need to know what thermostat housing you have. 2 or 4 hoses leaving the housing.
454 mag, bravo 1, 4 hose thermostat
Both hoses on each side of the thermostat housing will go into a "Y" then one hose from the "Y" to the bottom of the EMI manifold. You can purchase the "Y" from them at the same time you get the manifolds/elbows. We might be able to help you out on the cost...