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Both our Resonated and Non-Resonated Downpipes feature larger than stock tubing diameter
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Stainless Works 2-1/2" Header Build Kit On-Board Air Both our Resonated and Non-ResonatedAll tubes are CNC mandrel bent for optimal flow for the J bends in this header builder kit. Made from 304 stainless steel for maximum corrosion resistance. The diameter of tubes is 2 1 2" with . 049 wall thickness. This kit includes (2) 3 8" thick CNC laser cut flanges, of your choice. Also comes with (12) J bends, (2) formed collectors and (2) filler diamonds to connect the tubes together. We recommend the use of 308L SS welding rod. These kits are