So you hit a pothole in your Lexus, and now you hear some sort of rattling sound from beneath your car. Did you break a Lexus shock absorber? That's always a possibility, but there's also the chance that your Lexus catalytic converter has cracked. The Lexus catalytic converter is made up of a honeycomb of metal inside an outer shell. If the honeycomb in your Lexus catalytic converter shatters or otherwise separates from the outer shell, you end up with a rattling sound under the car. The pieces of your Lexus catalytic converter will tend to block other parts of the honeycomb too, so it's important to replace your Lexus catalytic converter if you think it might be shattered. Poor fuel economy and a decrease in power will be noticeable if you're getting obstructions in your Lexus catalytic converter from shattered components. Order a replacement Lexus catalytic converter from us to get things back in the pink again. Featuring all-welded construction and OE fit, a replacement Lexus catalytic converter from us can cost hundreds of dollars less than a Lexus catalytic converter from the dealership. Remember, the Lexus catalytic converter is not a dealer-only item these days: You can save time and money by buying your new Lexus catalytic converter right here.