I bought these parts new and a week later a great deal for a supercharger came across so I can't use them with the supercharger. I paid $210 for the Steeda pulleys and $210 for the JLT CAI from Americanmuscle. I'm selling the JLT CAI for $160 OBO plus S/H. It's brand new. Never installed. The Steeda UDP for $160 OBO plus S/H. They're in like new condition. Still in the box. My loss is your gain. First come, first served!