AP Exhaust 28591 Exhaust Pipe - Center

AP Exhaust 28591 Exhaust Pipe for GM Trucks

AP Exhaust 28591 is an aluminized steel exhaust pipe built as an original equipment replacement for select Chevrolet C1500, Chevrolet K1500, GMC C1500, and GMC K1500 applications. It is listed for center position use on 1988-1993 GM trucks with a 3" muffler inlet, making it a direct-fit option for common exhaust repair work.

Key Features

• Aluminized steel construction for corrosion resistance in exhaust service
• Original equipment replacement design
• Center position exhaust pipe
• Compatible with 1988-1993 Chevrolet C1500 and K1500
• Compatible with 1988-1993 GMC C1500 and K1500
• AP Exhaust part number 28591

Product Details

This AP Exhaust 28591 pipe is made for OE-style replacement on GM full-size trucks where the factory exhaust system used a welded assembly. It is specified for center placement and is listed for vehicles with a 3" muffler inlet. For 1993 Chevrolet C1500, Chevrolet K1500, GMC C1500, and GMC K1500 applications, the notes also indicate the locating clip must be removed from the OEM converter for proper installation, and certain closed coupled exhaust configurations are excluded.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Rusted or damaged center exhaust pipe sections
• Factory exhaust leaks at welded pipe assemblies
• Restricted exhaust flow caused by deterioration
• Fitment issues when replacing OE-style exhaust routing
• Repair needs on Chevrolet C1500, Chevrolet K1500, GMC C1500, and GMC K1500 trucks

Installation Notes and Tips

• Verify the vehicle is one of the listed 1988-1993 Chevrolet or GMC truck applications before ordering.
• For 1993 models, confirm the exhaust is not a closed coupled exhaust with a 3" muffler inlet exclusion.
• The OE system was welded; related parts noted by the manufacturer should be replaced as needed during service.
• Remove the locating clip from the OEM converter when required for proper installation.
• Check hanger condition, pipe alignment, and inlet size before final assembly.

Quality Assurance

AP Exhaust 28591 is an OE replacement exhaust pipe built from aluminized steel for service on listed Chevrolet and GMC truck applications. Fitment is defined for center-position installation on 1988-1993 GM C1500 and K1500 models.