Long Tube Mod Headers 1.75"-1.875"-3.5"

Modified Long Primary Design Headers. Longer Primaries For Maximum Torque And Horsepower. 1-3/4" -1-7/8" Tube Diameter. 3.5" X 9" Collector Diameter/Length. Standard Chevy Engine. Gaskets Included. Fits BMS, Dirtworks, Hoffman, Jet, KMOD, Bob Pierce, Pierce Platinum, Rocket, Sardeson, Smiley's, Swartz, Victory, Xtreme. **This Product May Not Be Legal For Street Use On Emissions-Controlled Vehicles But May Be Legal For Use On Dedicated Competition Or Pre-Pollution-Controlled Vehicles Only**