from what I remember the power limit was set to save the gearbox so 400nm was the reliable gearbox torque limit to last past warranty but an engine broke conrods and there have been a few since so i would probably replace conrods first.
I looked up different ones years ago, some people prefer different brands from others. I have no idea which is better out of the 2. Denso is the oem brand for toyota who owns them.