JRZ RS PRO Double-Adjust Coil-Over Kit for 2005-2014 Mustang

KB Specific JRZ RS Pro Coil-Over Kit for 2005-2014 Mustang, Boss 302, and GT500 Developed with Paul Brown Racing/Kenny Brown, JRZ Suspension Engineering has produced a complete "RS line" of single and double adjustable coil-over-shock and strut assemblies.  The RS Pro coil-over kit is a revolutionary, multi-purpose, high-performance damping system that applies race-winning technology. All RS coil-over kits are specifically designed to give ultimate comfort for public roads, and precise chassis control on the race track. The RS Pro coil-over system for Mustang is designed for easy use and installation and offers an excellent ride with real race performance when you need it.  It's also designed to be a long-life product, made from high-quality stainless steel and aluminum with a durable finish.  Features large diameter 16/22mm strut/damper rods with no canisters. Large double adjustment range with 12 clicks of compression and 24 clicks of rebound. KB specifies spring rates based on you