They feature 2" primary tubes and 3" collectors. Oxygen sensor bung welded to collectors. Powered by SixBit's eCommerce Solution.The item "1955-57 Chevy 210 Bel Air LS1 LS Swap Clipster Mid Length Headers Black Hot Rod" is in sale since Wednesday, December 5, 2018. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Exhaust\Exhaust Manifolds & Headers". The seller is "motornets" and is located in Chino, California. This item can be shipped worldwide.