In general, catalytic converters are one of the most expensive components of exhaust systems. Unfortunately, they are also among the most likely to fail. Catalytic converter works by using heat and pressure, combined with precious metals of the platinum family, to form a chemical reaction that scrubs your exhaust gases of environmentally damaging and poisonous byproducts. Catalytic converters reduce or eliminate the occurrences of nitrous oxide, sulfur dioxide, carbon dioxide, and hydrocarbons. On a 1996 – 2000 GMC K1500 truck, the catalytic converter is a critical component of the exhaust system. If you have failed an emissions test, you can replace your stock GMC K1500 catalytic converter with a high quality and more efficient after market part. The Eastern K1500 catalytic converter is an excellent option. It features a more wide open design than the stock system and it uses more advanced engineering to be more efficient than the stock system. That means by simply replacing your catalytic converter with an Eastern catalytic converter, you can see some fairly noticeable power gains. While replacing any catalytic converter is not an inexpensive undertaking, the GMC Eastern catalytic converter is priced competitively with a stock system, so the power gains and the more advanced engineering make the Eastern cat a better choice. Auto parts customers definitely deserve quality information and support when they buy high-quality auto parts. Because you deserve that, we run a 24/7/365 customer assistance bureau to help you with your calls. If you spot a lower price elsewhere, call us - we always beat any price advertised elsewhere.