DeTomaso Mailing List: February 2001, Message #14

In a message dated 2/1/01 5:02:34, rogers_landis@hotmail.com writes:

<< I agree with his sentiment, but take exception to his assertion 
that I should get rid of my stock headers.  The header I have on my car are 
the original ones from the factory.  The are still in good shape with some 
light surface rust. >>

>>>If that's true, consider yourself extremely fortunate.  Many if not most 
stock manifolds have developed numerous cracks by now, as their construction 
left more than a little to be desired.  Attempts to weld them are normally 
fruitless, as new leaks develop elsewhere before the repairs have even cooled!

They are also rather restrictive.

However, one massive advantage they have over tube headers is that they are 
QUIET.  Being cast, they are extremely heavy; this weight does an excellent 
job of damping the sound and radically reduces that annoying 2000 rpm BOOM in 
the cabin.

If, in fact, your manifolds are truly sound, then coating them will probably 
keep them that way forever, and if you don't mind the slight performance 
sacrifice associated with running them, then you go boy! :>)

Mike