The 64 Inch Left Diablo Top Stack with 7 Inch Reduced to 5 Inch I.D. Plain Bottom exhaust is a high-quality, chrome-plated product designed for OEM replacement. Sold individually, this exhaust fits most makes and models and is manufactured by Lincoln Chrome. With a plain bottom and reduced inner diameter, this exhaust offers a practical and durable solution for truck owners in need of a reliable replacement.