There is a lot more to silicone hoses than meets the eye.
Most low cost hoses are made in china,some that are made here in the states have a smaller thread in the reinforcing cords.You will find no better hoses than those from Mr Bobs disributing.
I have bean thrashing on them for many years now on both 2nd and 3rd gens.You can not go wrong at any PSI.I have seen other brands fail on the dyno,replace them with the right brand and go on to win the dyno competition