This is the new Mac straight through catback that was just released through Pacifica Performance. It's 2.5" fully stainless with small straight through style mufflers just like the SLP loudmouth. Polished 3.5" tips, comes with all the hangers and bolts so it will bolt right up to your car. This catback sounds just like the SLP loudmouth and it was too loud for me with my offroad X-pipe. It was $459 new and was only on the car a week. I need $350 shipped.