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Dynomax 89004 Exhaust System Kit
Overview of Dynomax Dual Pipe Kit 89004
The Dynomax Dual Pipe Kit part number 89004 is designed for exhaust system upgrades on select Chevrolet and GMC trucks and SUVs from 1973 to 1989. This premium steel dual exhaust system kit features straight dual exit pipes, engineered to enhance exhaust flow and maintain factory-style fitment for models like the GMC K1500 and Chevrolet K10 Suburban.
- Exhaust type: Dual pipe system
- Exit position: Dual straight outlets
- Inlet inside diameter: 2.250 inches
- Outlet outside diameter: 2.250 inches
- Tubing diameter: 2.500 inches
- Material: Durable steel construction
- Compatible with Chevrolet and GMC trucks and Suburban models from 1973 to 1989
- Part number: 89004
Detailed Product Description
The Dynomax Dual Pipe Kit 89004 is a steel exhaust system kit designed to replace or upgrade the exhaust and tail pipes on Chevrolet and GMC trucks and Suburban models, including the K10, K20, K1500, K2500, K3500, V10, V20, V1500, V2500, and V3500. The kit features dual straight exit pipes with a 2.250-inch inlet and outlet diameter, ensuring proper fitment and exhaust flow. The 2.500-inch tubing diameter supports efficient exhaust gas evacuation, which can help maintain engine performance and sound characteristics without a muffler included in this kit. This part covers vehicles manufactured between 1973 and 1989, with particular popularity among 1986 GMC K1500 owners.
About the Dynomax Dual Pipe Kit Product Line
The Dynomax Dual Pipe Kit product line focuses on providing dual exhaust solutions that offer straightforward installation and reliable performance. This line is tailored for classic trucks and SUVs requiring dual exhaust configurations with straight exit pipes. The 89004 kit exemplifies this approach by delivering a premium-grade steel system designed to fit specific Chevrolet and GMC models, maintaining OEM-style dimensions and exit positions.
Applications and Problem Solving
- Replacement of corroded or damaged dual exhaust pipes on 1973-1989 Chevrolet and GMC trucks and Suburbans
- Upgrading from single to dual exhaust systems for improved exhaust flow
- Restoring factory-style dual straight exit exhaust configuration
- Addressing exhaust leaks caused by worn or rusted pipes
- Maintaining proper exhaust diameter for engine performance consistency
Installation Notes and Tips
Installation of the Dynomax Dual Pipe Kit 89004 requires basic exhaust system knowledge and tools. Ensure the vehicle is securely lifted and cooled before beginning work. Verify compatibility with your specific Chevrolet or GMC model and year within the 1973-1989 range. Proper alignment of the 2.250-inch inlet and outlet diameters is critical for a secure fit. Welding or clamping may be necessary depending on your existing exhaust setup. It is recommended to inspect all exhaust hangers and replace any worn components during installation.
Quality Assurance
Dynomax manufactures the Dual Pipe Kit 89004 using premium-grade steel to provide durability and resistance to corrosion. This part is designed to meet or exceed OEM specifications for fit and function on compatible Chevrolet and GMC trucks and Suburbans. While specific warranty details are not provided, Dynomax products typically adhere to industry standards for quality and reliability.
| Brand | Dynomax |
| Part Number | 89004 |
| Position | Dual Pipe Kit |
| Exhaust Type | Dual |
| Exit Position | Dual |
| Exit Style | Straight |
| Inlet Inside Diameter | 2.250 in. |
| Material | Steel |
| Max Year Covered | 1989 |
| Min Year Covered | 1973 |
| Most Popular Make/Model | Gmc k1500 |
| Most Popular Year | 1986 |
| Muffler Type | None |
| Outlet Outside Diameter | 2.250 in. |
| Product Grade | Premium |
| Total Part VIO | 71844 |
| Tubing Diameter | 2.500 in. |
This part fits 125 vehicles. Search below:
| Year | Make | Model | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1989 | GMC | K1500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1989 | GMC | K1500 | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1988 | GMC | K1500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1988 | GMC | K1500 | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1987 | Chevrolet | V10 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1987 | Chevrolet | V10 Suburban | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1987 | Chevrolet | V20 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1987 | Chevrolet | V20 Suburban | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1987 | GMC | V1500 | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1987 | GMC | V1500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1987 | GMC | V2500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1987 | GMC | V2500 | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1987 | GMC | V3500 | Standard Cab Pickup | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1987 | GMC | V3500 | Cab & Chassis | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1987 | GMC | V3500 | Standard Cab Pickup | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1987 | GMC | V3500 | Cab & Chassis | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1986 | Chevrolet | K10 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1986 | Chevrolet | K10 Suburban | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1986 | Chevrolet | K20 Suburban | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1986 | Chevrolet | K20 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1986 | GMC | K1500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1986 | GMC | K1500 | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1986 | GMC | K2500 | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1986 | GMC | K2500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1986 | GMC | K3500 | Cab & Chassis | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1986 | GMC | K3500 | Cab & Chassis | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1986 | GMC | K3500 | Standard Cab Pickup | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1986 | GMC | K3500 | Standard Cab Pickup | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1985 | Chevrolet | K10 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1985 | Chevrolet | K10 Suburban | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1985 | Chevrolet | K20 Suburban | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1985 | Chevrolet | K20 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1985 | GMC | K1500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1985 | GMC | K1500 | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1985 | GMC | K2500 | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1985 | GMC | K2500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1985 | GMC | K3500 | Cab & Chassis | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1985 | GMC | K3500 | Cab & Chassis | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1985 | GMC | K3500 | Standard Cab Pickup | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1985 | GMC | K3500 | Standard Cab Pickup | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1984 | Chevrolet | K10 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1984 | Chevrolet | K10 Suburban | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1984 | Chevrolet | K20 Suburban | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1984 | Chevrolet | K20 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1984 | GMC | K1500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1984 | GMC | K1500 | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1984 | GMC | K2500 | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1984 | GMC | K2500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1984 | GMC | K3500 | Cab & Chassis | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1984 | GMC | K3500 | Cab & Chassis | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1984 | GMC | K3500 | Standard Cab Pickup | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1984 | GMC | K3500 | Standard Cab Pickup | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1983 | Chevrolet | K10 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1983 | Chevrolet | K10 Suburban | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1983 | Chevrolet | K20 Suburban | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1983 | Chevrolet | K20 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1983 | GMC | K1500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1983 | GMC | K1500 | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1983 | GMC | K2500 | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1983 | GMC | K2500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1983 | GMC | K3500 | Cab & Chassis | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1983 | GMC | K3500 | Cab & Chassis | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1983 | GMC | K3500 | Standard Cab Pickup | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1983 | GMC | K3500 | Standard Cab Pickup | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1982 | Chevrolet | K10 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1982 | Chevrolet | K10 Suburban | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1982 | Chevrolet | K20 Suburban | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1982 | Chevrolet | K20 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1982 | GMC | K1500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1982 | GMC | K1500 | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1982 | GMC | K2500 | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1982 | GMC | K2500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1982 | GMC | K3500 | Cab & Chassis | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1982 | GMC | K3500 | Cab & Chassis | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1982 | GMC | K3500 | Standard Cab Pickup | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1982 | GMC | K3500 | Standard Cab Pickup | 6.2L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1981 | Chevrolet | K10 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1981 | Chevrolet | K20 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1981 | GMC | K1500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1981 | GMC | K2500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1981 | GMC | K3500 | Cab & Chassis | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1981 | GMC | K3500 | Standard Cab Pickup | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1980 | Chevrolet | K10 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1980 | Chevrolet | K20 Suburban | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1980 | Chevrolet | K20 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1980 | GMC | K1500 | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1980 | GMC | K1500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1980 | GMC | K2500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1980 | GMC | K2500 | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1980 | GMC | K3500 | Cab & Chassis | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1980 | GMC | K3500 | Standard Cab Pickup | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1980 | GMC | K3500 | Cab & Chassis | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1980 | GMC | K3500 | Standard Cab Pickup | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1979 | Chevrolet | K10 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1979 | Chevrolet | K10 Suburban | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1979 | Chevrolet | K20 Suburban | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1979 | Chevrolet | K20 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1979 | GMC | K1500 | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1979 | GMC | K1500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1979 | GMC | K2500 | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1979 | GMC | K2500 | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1979 | GMC | K3500 | Cab & Chassis | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1979 | GMC | K3500 | Standard Cab Pickup | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1979 | GMC | K3500 | Cab & Chassis | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1979 | GMC | K3500 | Standard Cab Pickup | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
| 1978 | Chevrolet | K10 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1978 | Chevrolet | K10 Suburban | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1978 | Chevrolet | K20 Suburban | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1978 | Chevrolet | K20 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1977 | Chevrolet | K10 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1977 | Chevrolet | K10 Suburban | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1977 | Chevrolet | K20 Suburban | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1977 | Chevrolet | K20 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1976 | Chevrolet | K10 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1976 | Chevrolet | K10 Suburban | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1976 | Chevrolet | K20 Suburban | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1976 | Chevrolet | K20 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1975 | Chevrolet | K10 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1975 | Chevrolet | K10 Suburban | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1975 | Chevrolet | K20 Suburban | 6.6L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1975 | Chevrolet | K20 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1974 | Chevrolet | K10 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1974 | Chevrolet | K20 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1973 | Chevrolet | K10 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit | |
| 1973 | Chevrolet | K20 Suburban | 5.7L | V8 | N/A | Header Dual Kit; Not Emissions Legal; Dual Pipe Kit |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.