i have only 45,000 mi on my engine. i am installing aftermarket cam gears. should i replace my timing belts now also they seem to be in great shape. do i need a new tensioner and water pump now to?

 

waterpump should be still good, its really up to you man, i would change it, since everything is apart

im not too big a fan of the autotensioner, i have seen many fail due to the customer deciding they want to reuse it

i would suggest doing the h23 manual tensioner

 

It depends on how old your original timing belt it (years)

Also, I suggest changing the water pump and upgrade to the H23 manual timing belt tensioner while you are at it. They are both good insurance policies.