The 6in - 5in Diameter Reduced 90deg Exhaust Elbow is a practical and reliable product designed for 2006 & Earlier Peterbilt Models. Made of chrome metal, these elbows come with an additional tapered sleeve measuring 10" for extra support and strength. The sleeve fits into the bottom of any Middle Spool, corresponding to the correct diameter. This exhaust elbow not only enhances the performance of your vehicle but also ensures durability and longevity. With its easy installation and high-quality construction, this product is a must-have for any Peterbilt owner looking to improve their exhaust system.