Not doing it sooner...
Always a risk with anything, i did the JRE cam install myself... only issue i had was crank case pressure and that was fixed with a new catch can setup from mighty mouse... and a mod i did to it to reduce fumes... been no issues since.
I did a radiator and heat exchanger long before i made any HP upgrades.
I do not know where you are at on warranty, but that has to be taken into consideration
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