Coil-over sleeve kit for HD, HS, HR and M Series struts except Hx605 and Hx701 struts. QA1 has several coil-over kits designed for its drag and street shocks and struts. Part #COK103 - For HD, HS, HR Series Struts, Except Hx605, Hx607 and Hx701 Struts.