Borla 140068 Cat-Back Exhaust System - RAM 1500 5.7L V8 HEMI 2+4WD AT/MT RC EC CC SB Made of corrosion resistant aircraft quality stainless steel which decreases the fatigue incurred on these parts during high performance uses BORLA uses patented straight-through and multi-core technology to help increase horsepower and torque. Precision manufactured using aircraft-quality stainless steel, guaranteed to look like new for one million miles. Includes a split side exit single oval rolled angle-cut lined resonated tip Quality materials and craftsmanship for ultimate performance