Dynomax 89005 Exhaust System Kit
OE Quality 60-Day Returns
Dynomax
 Dual Pipe Kit

Dynomax 89005 Exhaust System Kit

Brand Dynomax 89005
Exhaust Type Dual
Exit Position Dual
Exit Style Straight
Inlet Inside Diameter 2.250 in.
Material Steel
Max Year Covered 1988
Min Year Covered 1973
Most Popular Make/Model Chevrolet k5 blazer
Most Popular Year 1987
Muffler Type None
Outlet Outside Diameter 2.250 in.
Product Grade Premium
Total Part VIO 24580
Tubing Diameter 2.250 in.
Product line Dual Pipe Kit
Fits Chevrolet and GMC · 56 vehicles

OE header fitment. Attaches to OE headers and uses a special reducer for flexible mounting.

Dual exhaust layout. Straight exit design with 2.250 in. tubing for a classic performance setup.

Steel construction. Built as a premium exhaust kit with durable steel tubing.

$279.49Free shipping
In stock · usually ships same day before 1pm CST
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Dual header kit for classic trucks

The Dynomax 89005 is a dual pipe exhaust system kit built for vintage Chevrolet and GMC applications with OE headers. It uses a special reducer to provide multiple mounting options while keeping the system focused on dual-exhaust flow.

  • Dual exhaust system kit with a straight exit style
  • 2.250 in. inlet, outlet, and tubing diameter
  • Steel construction for a durable exhaust build
  • Designed to attach to OE headers
  • Premium-grade Dynomax exhaust component

Fitment and application details

Compatible with classic Chevrolet K5 Blazer, Chevrolet Blazer, and GMC Jimmy applications listed below. Fits 1973-1974 Chevrolet Blazer, N/A; Fits 1975-1986 Chevrolet K5 Blazer, N/A; Fits 1987-1988 Chevrolet Blazer, N/A; Fits 1973-1988 GMC Jimmy, N/A. The Dynomax 89005 is a practical choice when replacing or upgrading a dual exhaust layout on a vintage truck platform.

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

What this kit helps address

  • Replacing a restrictive or damaged dual exhaust setup
  • Adapting a dual pipe layout to OE headers
  • Restoring proper exhaust routing on a classic truck
  • Supporting a straight-through dual exhaust configuration

Installation notes and quality

Installation is application-specific and should be matched to the listed header and vehicle fitment. The included reducer allows for a range of mounting options, which can simplify alignment during exhaust work. Dynomax is part of Tenneco and draws on global engineering resources across its performance exhaust line. Part number 89005 is also used to identify this dual pipe kit in catalog and fitment searches.

Related reading

This part fits 56 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeLitersCylindersNotes
1988ChevroletBlazer—5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1988ChevroletBlazer—6.2LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1988GMCJimmy—5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1988GMCJimmy—6.2LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1987ChevroletBlazer—5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1987ChevroletBlazer—6.2LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1987GMCJimmy—5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1987GMCJimmy—6.2LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1986ChevroletK5 Blazer—5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1986ChevroletK5 Blazer—6.2LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1986GMCJimmy—5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1986GMCJimmy—6.2LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1985ChevroletK5 Blazer—5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1985ChevroletK5 Blazer—6.2LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1985GMCJimmy—5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1985GMCJimmy—6.2LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1984ChevroletK5 Blazer4WD6.2LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1984ChevroletK5 Blazer4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1984GMCJimmy4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1984GMCJimmy4WD6.2LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1983ChevroletK5 Blazer4WD6.2LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1983ChevroletK5 Blazer4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1983GMCJimmy4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1983GMCJimmy4WD6.2LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1982ChevroletK5 Blazer4WD6.2LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1982ChevroletK5 Blazer4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1982GMCJimmy4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1982GMCJimmy4WD6.2LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1981ChevroletK5 Blazer4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1981GMCJimmy4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1980ChevroletK5 Blazer4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1980GMCJimmy4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1979ChevroletK5 Blazer4WD6.6LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1979ChevroletK5 Blazer4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1979GMCJimmy4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1979GMCJimmy4WD6.6LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1978ChevroletK5 Blazer4WD6.6LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1978ChevroletK5 Blazer4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1978GMCJimmy4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1978GMCJimmy4WD6.6LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1977ChevroletK5 Blazer4WD6.6LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1977ChevroletK5 Blazer4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1977GMCJimmy4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1977GMCJimmy4WD6.6LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1976ChevroletK5 Blazer4WD6.6LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1976ChevroletK5 Blazer4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1976GMCJimmy4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1976GMCJimmy4WD6.6LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1975ChevroletK5 Blazer4WD6.6LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1975ChevroletK5 Blazer4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1975GMCJimmy4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1975GMCJimmy4WD6.6LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1974ChevroletBlazer4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1974GMCJimmy4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1973ChevroletBlazer4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit
1973GMCJimmy4WD5.7LV8Header Dual Kit; Not Emissions Legal; Dual Pipe Kit