Quote:
Originally Posted by mattkim85
lol yea, i do that sometimes too when my girlfriend is in the car or i'll try to cover it up with the speakers :/
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Oh yes, the HFC definitely makes things louder. It was nice to keep the stock cats handy. The rasp went away, and it is much quieter. I'd personally get the 18" and keep the stock cats if I were to do it all over again.