“The er series of coil overs he’s super sick easy to use and very simple to install. By getting together with spring rates they help me to find the right Swiss Spring for my rear and front Coil overs. Leaving here in how are you we have no track so my coil overs were designed for street use. All dialed in by 240 rides like a Cadillac. But he’s super agile and I still can drift on the streets. BC ER coil overs to me or one of the best coil over systems for Wise fab. I read this coil over 10 out of 10 and the service from spring rates is incredible”