If you were going to change your manifolds what would you use ? EMI thunder--- Stainless marine---or CMI e top... I need to change my manifolds and I dont know which to get and I dont want to put back on stock ones.... Thanks

i personally like the lightnings, i think i still may go this route even though the gains are minimal

I went with Dana Marine. I did a fair amount of research before I bought them, and spoke a bit with Ray at Raylar as well, whose done a fair amount of testing on 496HO. Pretty simple install. I don't think you'll notice much performance improvement though. But I am happy with mine.

x2 on the Dana Marine

While youll find many varied opinions here I will just throw mine in the pile. Stainless marine builds the best salt water resistant system of the bunch. While Dana builds the best performing exhaust manifold system. Lightning is going to give you a fabulous header for an affordable cost and CMI provides a great salt water all stainless system with a great fit. You can find all of these systems here at www.cpperformance.com

Stainless Marine Gen 3 my boat picked up 3-4 mph on gps and they wont crack down the road like a header style will

i went with cmi e-top's...I was shocked at the weight of the stock vs cmi's. just got em on this year. I have twins so it was a tight fit in the sunsation but very nice and gained 45 hp per side...I did have my ecm tuned after the original dyno. (precision marine, Mark Boos) to get the hp gain as well.

O K now its down to stainless vs dana.... Which has a better track record in salt water.. which has better performance.. if im going to spend extra bucks i want to gain alittle something

I have stainless on mine and it drives me nuts that I have to pull the whole exhaust to change to spark plugs. Not sure if Dana has more room but its some thing to consider for down the road

I have danas on my ho and it's no problem changing plugs with the exaust on