Our Nissan Maxima catalytic converters come customized to your ride's specs with a welded stainless steel case and a durable heat shield that stands up to miles of brutal road conditions. Their precision honeycomb structure supercharges air flow and amps up your car's horsepower, while still complying with stringent air quality restrictions. And, for California drivers, we have one that even passes your state's rigorous smog standards. Our Maxima catalytic converters are cut to your car's specs, so they bolt onto your exhaust with no welding or pipe bending. A 5-year, 50,000-mile warranty means you're ready to roll for the long term. Join our legions of customers who stick with us for the best automotive products in the biz!