Eibach Pro-Kit for 2013+ Ford Focus ST Mustang This versions is known to

This versions is known to get rowdy in the mid range

Features a 5"x9" muffler and a dual exit under the bumper in the factory location

50-state emissions-friendly dual 3” catback configuration featuring patented drone-canceling 180 Technology®

This system is equipped with a "Sound Suppressing Valve" simulator which ELIMINATES the valve

TIG welded

Eibach Pro-Kit for 2013+ Ford Focus ST Mustang This versions is known to[From Manufacturer.] 0. 7 in (Front) 1. 0 in (Rear) High Performance Handling and Aggressive Good Looks. Lower Center of Gravity. Stop Quicker, Corner Faster and get Better MPG! Progressive Spring Design for Excellent Ride Quality. Million Mile Warranty