These are the extension pipes for block hugger headers. New, never used. Header flanges included too if you need them. I accept PayPal, buyer pays shipping. Will consider trade for Model A stuff. Here's the description from Speedway Motors. Details Outside Diameter: 2.5" Material Type: Steel Gauge Thickness: 16 MFG. Part #: 91013385 Overall Length: 17.5" Drop: 10.5" Material Thickness: 0.0625" Flange Thickness: 0.28" Inside Diameter: 2.38" Finish: Natural Sold in Quan***y: Pair Notes: 5" 20 degree bend off the end. Includes flanges and gaskets. Info Using this kit makes the hook-up of your exhaust system a snap! The 2-1/2" diameter, 16-gauge, mandrel-bent tubes curve back at a 90° angle and are offset outward to clear the bellhousing and starter. They drop 10-1/2" from the header flange and they extend backward 17-1/2" after the 90 degree bend. Just trim the length, weld on the 9/32" thick collector flange (included, with gaskets) and you're all set! Works great with any tight-fit headers. Header not included.