Dynomax 89003 Exhaust System Kit Fits select: 1989 GMC SIERRA, 1988 GMC GMT-400

Give your vintage vehicle’s exhaust system an upgrade with a DynoMax dual header kit. Designed to attach to OE manifolds, it features a special reducer that allows for a variety of mounting options.

• COMPATIBILITY -- Designed for a variety of full-size 1973-89 GMC 4WD trucks and Chevrolet 4WD SUVs; see product information for compatibility and engine spec
• BUILD IT YOURSELF -- Design and custom fabricate your own exhaust system with this kit that attaches to OE manifolds
• FLEXIBLE MOUNTING -- Special reducer design allows for a variety of mounting options
• IMPROVED FLOW CAPACITY -- Smooth bends improve flow capacity over traditional bends
• SPECS -- Extra-long tailpipes with side exits with a full 2.25-in. diameter; tailpipes exit each side of vehicle behind rear tires
• COMPLETE SOLUTION -- Includes all the necessary clamps, hangers, flanges, gaskets, mounting hardware, intermediate, extension and tail pipes
• PREMIUM MATERIALS -- Made from quality aluminized steel for durability and long life
• BETTER TOGETHER -- Complete your system with premium DynoMax mufflers and DynoMax accessories for a complete performance exhaust system
• WARNING -- Not legal for use on pollution-controlled motor vehicles

Fits Select:
1989 GMC SIERRA 8 Cyl 5.7 L
1988 GMC GMT-400 8 Cyl 5.7 L
1973-1981,1986 GMC K1500 8 Cyl 5.7 L
1987 GMC V15 CONVENTIONAL 8 Cyl 5.7 L
1973-1986 GMC K2500 8 Cyl 5.7 L
1987 GMC V25 CONVENTIONAL 8 Cyl 5.7 L
1981-1987 CHEVROLET SUBURBAN 8 Cyl 5.7 L
1982-1985 GMC K1500 8 Cyl 6.2 L
1977-1986 GMC K3500 8 Cyl 5.7 L
1987 GMC V35 CONVENTIONAL 8 Cyl 5.7 L
1973-1975,1978-1980 CHEVROLET K10 8 Cyl 5.7 L
1973-1976,1978-1980 CHEVROLET K20 8 Cyl 5.7 L
1976-1977 CHEVROLET K10 8 Cyl 6.6 L
1977 CHEVROLET K20 8 Cyl 6.6 L
and more - add your vehicle to our fit widget to check

Manufacturer part number	89003
Vehicle model	K10 Suburban; K20 Suburban; V10 Suburban; V20 Suburban; K15/K1500 Pickup; K25/K2500 Pickup; K35/K3500 Pickup; K1500; K2500; K3500; V3500; K15; K25; K35; V1500; V2500
Vehicle year	1973
Vehicle make	Chevrolet; GMC
Vehicle fitment type	Universal
Automotive parts division	Direct Replacement
Brand	DynoMax
Automotive specialty part type	Exhaust System Kit
Features	Adjustable
Material	Aluminized steel
Color	Multi-color
Weight	48 lb
Has written warranty	No
Items included	clamps, hangers, flanges, gaskets, mounting hardware, intermediate, extension and tail pipes
Vehicle type	Truck
Compatible cars	1973-1986 Chevrolet K10 Suburban; 1975-1979 Chevrolet K10 Suburban; 1982-1986 Chevrolet K10 Suburban; 1973-1986 Chevrolet K20 Suburban; 1975-1980 Chevrolet K20 Suburban; 1982-1986 Chevrolet K20 Suburban; 1987-1987 Chevrolet V10 Suburban; 1987-1987 Chevrolet V20 Suburban; 1973-1974 GMC K15/K1500 Pickup; 1973-1974 GMC K25/K2500 Pickup; 1973-1974 GMC K35/K3500 Pickup; 1979-1989 GMC K1500; 1979-1980 GMC K1500; 1982-1989 GMC K1500; 1979-1986 GMC K2500; 1979-1980 GMC K2500; 1982-1986 GMC K2500; 1979-1986 GMC K3500; 1979-1980 GMC K3500; 1982-1986 GMC K3500; 1987-1987 GMC V3500; 1975-1978 GMC K15; 1975-1978 GMC K25; 1977-1978 GMC K35; 1977-1977 GMC K35; 1987-1987 GMC V1500; 1987-1987 GMC V2500
Pack quantity	1