Originally Posted by antfd3s

I think you meant hfcs vs rtp?
Its really up to you. Your still gonna have rasp w both regardless. The hfc will eliminate mostly all but will restrict flow and power.Rtp will give you a bit more rasp(not much noticeable )and free up more power and flow. I personally like more power and flow. This car after awhile ALWAYS needs more power. You wont notice rasp until the higher revs anyway. Not everyone puts this dd to the pins every light to even notice. Thank god it doesnt sound like rice a roni.