Carbon trap removal, +18 hp ??

[RocketGuy3]

Db is a logarithmic unit. So + 3 is double the sound pressure.
Hp is not logarithmic so +10 and +20 will be just that much.

I know, but I don't understand your point. If anything, you're solidifying my argument. You need double the sound pressure for your ears to pick up the difference, but you think your butt can notice a 3-4% power bump?

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[Nickel]

I removed my HC trap in April while I was at Deal's Gap and I didn't notice a difference but I'm not letting the EPA steal hp from me.