you remover the butterfly from one of the plates befroe you put it on.
most of the power comes from the added volume and velocity.
if you have $60.00 to spend on the blacktrax, then it would be a better choice. but if you already have the parts laying around, then my way is a super cheap way to go.
most of the power comes from the added volume and velocity.
if you have $60.00 to spend on the blacktrax, then it would be a better choice. but if you already have the parts laying around, then my way is a super cheap way to go.
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