Dynomax 19374 Exhaust System Kit

Dynomax Ultra Flo Welded Cat-Back Exhaust

Dynomax Ultra Flo Welded Single System part number 19374 is a cat-back exhaust system built for the 2002-2004 Jeep Grand Cherokee. It uses a straight-through muffler design, 2.5-inch piping, and a 3.0-inch round stainless steel tip to support freer exhaust flow and a deeper performance tone.

For Jeep Grand Cherokee owners looking for a performance exhaust upgrade, this system combines stainless steel muffler construction with mandrel-bent steel piping and a rear exit layout. Part number 19374 is engineered as a direct-fit exhaust system for the 2002, 2003, and 2004 Jeep Grand Cherokee.

Key Features

• Fits 2002-2004 Jeep Grand Cherokee, rear position
• Cat-back system with single exhaust layout
• Straight-through Ultra Flo Welded muffler design
• 2.5-inch inlet, outlet, and tail pipe diameter
• Mandrel-bent steel piping for consistent exhaust routing
• Stainless steel muffler body and stainless steel tip
• Round, non-rolled 3.0-inch tip
• Rear exit, straight exit style
• Mounting hardware included per product listing

Product Details

Dynomax Ultra Flo Welded systems are built around a welded stainless steel muffler with a straight-through internal path and Continuous Roving Fiberglass (CRF) technology to reduce unwanted interior resonance while maintaining a performance-oriented exhaust note. This cat-back system is designed to replace the exhaust from the catalytic converter back, making it a practical choice for drivers seeking improved exhaust flow and a cleaner, more aggressive sound profile on the Jeep Grand Cherokee.

Part number 19374 uses aluminized steel pipe sections with a stainless steel muffler and tip, along with a rear-exit single exhaust configuration. The system is listed for the 2002-2004 Jeep Grand Cherokee and is a fitment-specific solution for owners searching for a 2004 Jeep Grand Cherokee cat-back exhaust, a 2003 Jeep Grand Cherokee performance exhaust system, or a 2002 Jeep Grand Cherokee stainless steel muffler upgrade.

Common Uses

• Replacing a restrictive factory exhaust on a Jeep Grand Cherokee
• Addressing exhaust noise from a worn muffler or pipe section
• Upgrading to a cat-back system with a straight-through muffler
• Improving exhaust tone on a 2002-2004 Jeep Grand Cherokee
• Restoring a damaged rear-exit exhaust assembly

Installation Notes

This system is a bolt-on exhaust kit for the listed Jeep Grand Cherokee applications. Verify pipe diameter, rear exit routing, and vehicle year before installation. The kit contents include the muffler, tail pipe, clamps, hanger, and insulator as listed in the product data. No oxygen sensor bung is included.

For best results, inspect existing exhaust hangers, flange points, and underbody clearance before installation. A proper fit on the 2002-2004 Jeep Grand Cherokee depends on matching the confirmed application and exhaust routing.

Quality Assurance

Dynomax Ultra Flo Welded mufflers use 100-percent welded construction for durability and are backed by a Limited Lifetime Warranty and a 90-Day Performance & Sound Guarantee. Part number 19374 is part of the Dynomax Ultra Flo Welded Single System line, which focuses on stainless steel muffler construction and controlled exhaust resonance for performance use.