Why is everyone saying 300hp is difficult to achieve?

280hp on a VF is pretty normal. Squeezing out that extra 20hp isn't too hard especially when the engine is out for a conversion.

300hp in a GC is epic too.

Personally, I'd just run it as is for now and enjoy the factory power. Factory RA is a good thing!

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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]