my CTA intake, I got it used at a meet for $70. That thing made my car sound like a porsche, every time I guned the gas pedal people near by would whip their head around to see what was making that beautiful noise... Then they saw that it was a contour, and got confused... Lol, it sounded great and I got redickulious gains out of it, a noticeable difference I could feel all the way up the powerband.