Exhaust Manifolds Life Expectancy

[team shadow]

How may years or hours should you get from a 2001 5.7 L EFI raw water cooled exhaust manifolds and risers, almost all fresh water if you call the Delaware river fresh?

 

[Scott Danforth]

with a flush afterwords, probably 30+ years or over 3000 hours

 

[Chad Flaugher]

I agree %100. Mine are over 40 years old.