BORLA Hanger/ Isolator Kit is designed fo use with custom installations. Kit contains (4) 5/16" diameter and (2) 7/16" diameter stainless steel rods, and (2) high-temperature rubber isolators. Natural mill finish can be brushed or polished prior to installation. To see how to use these hangers check out the "How to Install Video" Link.
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Messaged Brian about the thought of doing coilovers and sway bars on my c6. He called me up and we talked for probably 30 min, awesome guy to work with/shop with. Definitely would recommend this company.