COBRA Powerport Dual Headpipes with Dual Bungs - Black 6253DBRB1 Corsair-X/Defiant-X/Signet-X Helmet Interior Pad — S Stock H-D mufflers will not

Stock H-D mufflers will not work with this head pipe because of the stock mufflers internal construction

Replacement helmet liner for Arai XD-4

it's designed to crush or break away upon impact

Includes a mount kit for 7/8” handlebars

COBRA Powerport Dual Headpipes with Dual Bungs - Black 6253DBRB1 Corsair-X/Defiant-X/Signet-X Helmet Interior Pad — S Stock H-D mufflers will notPowerPort Dual Headpipes make use of Cobra's strategically located PowerPort cross over to deliver 2 into 1 power with the look of a traditional dual system Fattens the low end and mid range torque curve; perfect for touring and highway use Includes headpipes, PowerPort cross under section, heat shields and all of the mounting hardware needed Offers both 12mm and 18mm bungs in the stock location Mufflers not included