The AP Exhaust 3591 is a direct-fit replacement Muffler - Challenge designed to restore factory exhaust performance and sound quality. Constructed from durable aluminized steel and engineered to OE dimensions, this unit installs with minimal modification for a dependable, long-lasting repair. Ideal for technicians and DIY enthusiasts seeking a quality replacement muffler.

AP Exhaust 3591 Muffler - Challenge Features:

• 1989-1991 Cadillac DeVille, 1989-1991 Cadillac Fleetwood, 1989-1991 Cadillac Commercial Chassis
• Body Material: Aluminized Steel
• Grade Type: Standard Replacement
• Muffler Type: Baffled
• Body Length: 20.000 in.
• Overall Length: 24.000 in.
• Inlet Inside Diameter: 2.500 In. (Right Center)
• Outlet Inside Diameter: 2.25 In. (Center)
• Heat Shield Attached: No
• Sound Level: OE comparable
• Tunable: No