Sioux Muffler has serviced the Siouxland area for over 40 years at the same location. Custom exhaust is our specialty. No job is too big or too small. We work all foreign and domestic cars and trucks. We are locally owned and operated. Custom Bending to Fit your needs bluminized Tubing Catalytic Converters & Testing Heavy Duty Silent Mufflers Free Estimates Guaranteed Work Lifetime Warranty Available Performance Mufflers Sorry, NO Personal Checks Accepted. We do accept Visa, Master Card, Discover, American Express and cash. Se Hablo Espanol.