Doug's Headers for Semi Trucks
- Doug's Headers® - 4-Tube Steel Hi-Temp Black Coated Long Tube Exhaust Headers (D3373-B)4-Tube Steel Hi-Temp Black Coated Long Tube Exhaust Headers (D3373-B) by Doug's Headers®. Primary Tubing Diameter: 1.625". Color: Black. Header Coating: Ceramic. Header Style: Long Tube. Doug's headers are carefully developed on the...Doug's Headers D3373 Metallic Ceramic Coating3/8" thick flanges$471.45