The quality of every car that Lexus makes is evident in the excellent design and construction. The 1990 – 1997 Lexus LS400 is one of the most popular cars in the company’s history. Lexus is a subsidiary of Toyota, a company that is on track to become the number one automaker in the world, and part of the reason for their success is the longevity of their vehicles. Of course, if you want to get 200,000 miles out of your LS400, you are going to have to do some maintenance. While Lexus exhaust systems are quite reliable, if you have failed an emissions inspection, the problem may lie with your Lexus LS400’s catalytic converter. If you suspect this is the case, then you can replace your OEM cat with a high quality Catco LS400 catalytic converter. This model of cat is built specifically for this model of Lexus. Catco catalytic converters provide excellent functionality without sacrificing performance. In many cases, you may even be able to use a Lexus Catco catalytic converter with other components of your factory exhaust system. If your catalytic converter is the problem, then Catco is the solution. Auto part buyers always deserve an outstanding level of sales assistance while purchasing high-quality auto parts from us. To support that need, we built a twenty-four hour a day customer assistance bureau to assist you with your questions. If you spot a lower price elsewhere, tell us - we will meet or beat any legitimate auto part price.