Please refer to the Spring Calculator Link below for guidance on spring sizes. Most people will use 6" long springs.Made in the USA. Applications: 2009+ Nissan 370Z (Z34) 2007-2008 Infiniti G35 Sedan (V35) 2008+ Infiniti G37 (V36) Need a replacement rod end? SPL Rod Ends Installation Instructions: SPL Rear Mid Links SPL Rear Mid Link Spring Calculator
