400 WHP Build with Headroom – Smart or Pointless?

[beaterfl5]

The 5" catalyst we use is rated for up to 1000whp. It's the same one we use in our 577whp FL5 with the Kuro+.

What's your experience ben like pushing over 550hp? Do you find yourself constantly dealing with little issues that pop up, or has it been pretty solid overall? My main concern is that the small stuff would make it harder to daily drive and less livable, but if that hasn't been the case, it makes the push for more hp a lot more appealing.

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[Two Step Performance]

What's your experience ben like pushing over 550hp? Do you find yourself constantly dealing with little issues that pop up, or has it been pretty solid overall? My main concern is that the small stuff would make it harder to daily drive and less livable, but if that hasn't been the case, it makes the push for more hp a lot more appealing.

Zero reliability issues. Two thoughts that come to mind:

• You can fuel a ~425whp Kuro on 93 octane, no strings attached.
• Fueling a ~550whp Kuro+ requires an upgrade high pressure fuel pump, injectors, low pressure fuel pump, and a flex fuel kit - and using ethanol blended fuel. It's a ~$3500+ investment in fueling which is hard to justify for many.

Another 125whp is a big step up! But it does come at a cost.