This cat back exhaust system will bolt up to a FG XR8 & GS 5.4 lt Ute only. It is manufactured from mild steel and has duel 2.5 inch pipes with two good sized mufflers, it comes with duel tips attached. This system will give a great sound that others will admire. The X force system is a proven performer on the dyno and race track. This system will also come with a y piece not shown in picture. The system in the pictures is a stainless steel system.