When should radiator and heater hoses be replaced? How much should this cost? on 1994 Mazda Miata MX-5

I live in area code 10011. It looks like silicone is preferable to rubber. ANy reason not to use it in a Miata?

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer 1 comment
if they have not been done its most likely time to repl. repl with normal cooling hoses avail at napa. approx cost 300.00 depending on labor rate in your area
Thank you.