MagnaFlow 13129 Redpack 4" x 18" Round Glasspack Perf. Muffler

The MagnaFlow Redpack 13129 Glasspack Performance Exhaust Muffler combines traditional hot rod styling with modern exhaust technology. Designed to deliver the classic deep glasspack tone enthusiasts love, this muffler features a distinctive red powder-coated finish that stands out while complementing custom and performance exhaust systems. Its straight-through construction promotes unrestricted exhaust flow for improved engine breathing and performance.

Built from corrosion-resistant aluminized steel, the 13129 features a 4-inch round body with 3-inch center inlet and outlet connections. The reversible universal-fit design allows installation in either direction without affecting sound or performance, making it ideal for a wide variety of custom applications. MagnaFlow utilizes extensive dyno testing and precision robotic manufacturing to ensure consistent performance, durability, and quality. Professional installation is recommended for the best fit and results.

• Classic glasspack design delivers a deep, aggressive hot rod exhaust note
• Straight-through construction enhances exhaust flow and supports improved performance
• Durable aluminized steel construction with a corrosion-resistant red powder-coated finish
• Reversible universal-fit design provides flexible installation options for custom exhaust systems
• Dyno-tested and precision-manufactured for proven performance, quality, and reliability