This American Thunder® Cat-back system is designed for 2013-2015 Toyota Tacoma trucks with the 4.0L engine. The system is constructed of 409S stainless steel for long-lasting durability and the 2.50 in. mandrel-bent system connects to the catalytic converter with the flanged inlet pipe. It then runs back into a Super 50™ Series muffler and has dual 2.50 in. tailpipes exiting on each side of the vehicle behind the rear wheels. The tailpipes clear the factory spare tire, use the factory hanger locations for an easy installation and are finished off with large 3.50 in. polished stainless steel tips embossed with the Flowmaster® logo. As an American Thunder system, it provides improved horsepower and torque along with a moderate performance sound level both inside and outside of the vehicle. Includes all necessary parts, hardware and instructions for an easy bolt-on installation you can do at home. The system is also covered by our Lifetime Limited Warranty. Note: Fits both 2/4 wheel drive models. Does NOT fit standard cab or X-Runner models.