Offshoreonly.com - 496 Exhaust

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Fountaineer

11-01-2005 01:46 PM

496 Exhaust

I'm thinking about ordering the Raylar heads, cam, intake kit for a 496. They say the motor will have about 525 HP when all is said and done.

I would like to change the stock exhaust, but I'm not sure I will be able to afford the CMI's, which is my first choice.

If I have to go with a new manifold, which one is the best? Stainless Marine, Gil, EMI, Imco...?

Chris288

11-01-2005 03:12 PM

Re: 496 Exhaust

Ray says the stock exhaust works just fine and is a good unit. I believe he suggests sticking w/ stock.. unless you could afford the cmi's I would stick w/ stock, thinking of doing the same mods this winter...

IM4A2Z

11-01-2005 03:54 PM

Re: 496 Exhaust

Either Hotboat or Powerboat magazine did a test on the new CMI headers for the 496 and got a decent gain. Not sure how much gain you would get with your new package but, I would think headers over the stock units would flow and scavenge better.

Fountaineer

11-01-2005 05:52 PM

Re: 496 Exhaust

But how much better than the Stainless Marine, Imcos, or Gil?

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