How about the rear setup? When do you recommend changes to track bar or control arms? I'm planning to lift 2 inches above base height and wonder if the rear track bar is going to be an issue if left stock.totally bolt on. the springs are custom to that application but the shock is based on 2.5 shock technology. meaning you can probably tune coils from the racing industry. The team did a great job nailing that shock and spring down. try it first before you start tuning.