Autotech SportTuned Aluminized Exhaust Systems are designed to outperform other budget exhaust systems on the market. In fact, they outperform many high dollar systems out there too. When we say outperform, we're talking on several levels, not just power output. Here are some of the features of our Aluminized Systems: 14 Gauge Flash-Control Aluminized Tubing, CNC Mandrel Bends Throughout, DYNOMAX Super Turbo Mufflers with a Limited LIFETIME Warranty, OEM Shell Clamps, OEM Rubber Hangers and Hardware, Quiet Performance, 2 Year Limited Tubing Warranty from Autotech. Autotech SportTuned Aluminized Exhaust Systems are complete cat back systems, attaching to the back of the catalytic convertor. Each System comes complete with all necessary clamps, hangers, gaskets, hardware, and instructions.