Avoid the pollution police and keep your ride in tip-top shape with Magnaflow Catalytic Converters. These 49-state-legal beauties are constructed from stainless steel, chock-full of smog-scrubbin’ precious metals arranged in a high-flow honeycomb pattern, so they boost performance. 5-year, 50,000-mile external warranty; 2-year 25,000-mile internal warranty.
With Kooks Ultra High Performance Green Catalytic Converters, you keep both Ma Nature and your lead foot happy. Available in multiple sizes, these performance catalytic converters use a Flow Thru design to clear away restrictions and crank up the ponies. 2-year EPA warranty.
Not sure which 2003 Chevy Express Catalytic Converters are right for you? We have over 491 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"Mechanic installed with no issues. Van runs fine. Gas mileage seems to have improved. Check engine light is off." —Barry R from Ashland, VA bought an Eastern Catalytic Direct-fit Catalytic Converters - 49-State Legal for a 2003 Chevy Express, 1500, 4.3L V6.