Bassani Xhaust 2-Into-1 Crossover Eliminator With 4"DNT® Slip-On Muffler - Black - Megaphone387626444 Product Description Block off cap for stock crossover pipe turns your stock system into a 2 into 1 16 gauge steel construction Specially designed three stepped DNT baffle, acoustically tuned to deliver a unique deep and throaty exhaust sound while providing maximum performance 4" OD megaphone style Billet end cap with machined flutes Removable spiral core louvered baffle included Includes mounting hardware Made in the USA