Hey neighbor,
I'll put my 2 cents in:
Originally posted by Mirage:
Is it really worth the money on an IMCO or stainless manifold or would I get the same performance gain with stock manifolds and direct through hull?
I went with EMI Thunder. IMO, stock cast manifolds are very heavy, so by switching, you will lose some weight right off the bat. However, through-hull is only one piece to the puzzle to make your engine flow better. The rockers are a step in the right direction, although a new cam would be even better. http://www.goldenplasma.f2s.com/foru...es/happy04.gif
Originally posted by Mirage:
Will the IMCO or stainless give me the individual tube sound like headers give a car or are they overated on a -300HP boat set up?...WIll running the pipes out below water level cause problems?
I installed Eddie 4" tips (w/internal flappers) under my swimsteps. They sound plenty beefy, but the "tube sound" is not there, mostly because my hatch is very insulated.
If you install a good set of heads, intake manifold, and cam down the road, the old stock manifolds would be the weakest link- goodbye!
I have no problems with the tips being below the water. They have the internal flappers to keep reversion to a minimum, and it's kinda nice to idle around with just some bubbles, and then it comes alive when it gets on plane. http://www.goldenplasma.f2s.com/foru...es/happy30.gif
Originally posted by Mirage:
Lastly how do I get the Y pipe off or can I cut them down, leave it and cap the top?
I had to pull the engine, unbolt the "Y", and make a plate and gasket to cap off the old exhaust exit (use the old bolt locations), and then I removed the bellows. Except for pulling the engine, it's actually pretty easy.
Good luck! http://www.goldenplasma.f2s.com/foru...es/happy25.gif
[This message has been edited by Havasu Hangin' (edited October 12, 2001).]