Exhaust Header Husler Hedders; Header Weld-Up Kit Husler Hedders; Header Weld-Up Kit; Natural Finish; Tube Size 1 5/8 in.; Collector Size 3 in.; Weld On; Small Block Chevy; FEATURES: Thermal Protection Up To 1300 Deg. Will Not Chip Or Peel More Durable Than Chrome Will Not Blue Or Discolor Easy To Clean Better Heat Insulation Guaranteed Against External Rust-Through Best High Temp Coating On The Market Today Hedman Husler Hedders is widely known as a manufacturer of drag racing exhaust components for the last 50 years, including a strong focus on the NHRA. That commitment and focus on racing has expanded in the last few years to the stock car level.