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1985 GMC K2500
1
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Guaranteed to Fit1985 GMC K2500 Change Vehicle

Dynomax®
1985 GMC K2500 - Exhaust System, 5.7L Engine

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$343.49
$713.40Save: $369.91(52%)
Manufacturer #89024
Guaranteed to Fit1985 GMC K2500 Change Vehicle
Qty:
1

Your Vehicle Fit Details

Vehicle Name
Submodel
Engine
Fitment Information
1985 GMC K2500
Sierra Classic
8 Cyl 5.7L
96.0 in. Bed, Standard Cab Pickup, 4WD, Headers With Air Injection Fittings For PN[85503], Used With PN[85003/86003/85503/85089/86089]
1985 GMC K2500
High Sierra
8 Cyl 5.7L
96.0 in. Bed, Standard Cab Pickup, 4WD, Headers With Air Injection Fittings For PN[85503], Used With PN[85003/86003/85503/85089/86089]
1985 GMC K2500
Base
8 Cyl 5.7L
96.0 in. Bed, Standard Cab Pickup, 4WD, Headers With Air Injection Fittings For PN[85503], Used With PN[85003/86003/85503/85089/86089]

Highlights

Part:
Exhaust System
Brand:
Dynomax
Notes:
Fits to headers with air injection fittings
Material:
Made of Aluminized Steel
Series:
Thrush Series
System Type:
Header-Back
Quantity Sold:
Kit
Warranty:
Lifetime Dynomax limited warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Exit Location:
Exit: Split Rear
Main Piping Diameter:
2.25 in. Main Pipe
Product Fit:
Direct Fit
Recommended Use:
Performance Replacement
Fitnotes:
96.0 in. Bed, Standard Cab Pickup, 4WD, Headers With Air Injection Fittings For PN[85503], Used With PN[85003/86003/85503/85089/86089]

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
1973-1974 Chevrolet K10 Pickup
Base
8 Cyl 5.7L
78.0 in. Bed, Standard Cab Pickup, Headers With Air Injection Fittings For PN[85503], Used With PN[85003/86003/85503/85089/86089]
1973-1974 Chevrolet K20 Pickup
Base
8 Cyl 7.4L
96.0 in. Bed, Standard Cab Pickup
1973-1974 Chevrolet K20 Pickup
Base
8 Cyl 5.7L
96.0 in. Bed, Standard Cab Pickup, Headers With Air Injection Fittings For PN[85503], Used With PN[85003/86003/85503/85089/86089]
1973-1974 GMC K15/K1500 Pickup
Base
8 Cyl 5.7L
96.0 in. Bed, Standard Cab Pickup, Headers With Air Injection Fittings For PN[85503], Used With PN[85003/86003/85503/85089/86089]
1973-1974 GMC K25/K2500 Pickup
Base
8 Cyl 5.7L
96.0 in. Bed, Standard Cab Pickup, Headers With Air Injection Fittings For PN[85503], Used With PN[85003/86003/85503/85089/86089]
Page 1 of 26 | Showing 1 - 5 of 127 results

Product Information

DYNOMAX – THRUSH EXHAUST SYSTEMS

Dynomax’s Thrush Headerback Exhaust System will not only boost your image with its turbo mufflers, but is proven to dramatically increase your vehicle’s power and performance with style and a deep, cool tone that’ll make your hot rod stand out – and impress your friends. Dynomax is a world leader in the performance exhaust space, manufacturing products held to the highest engineering standards and backed by extensive research and development.

  • Specifically designed for classics/hot rods
  • Made to be used with full-length headers
  • Most systems Include two vintage-style Thrush mufflers and smooth bent 2 ½ inch aluminized exhaust pipes
  • Most systems comes with an H-pipe balance tube
  • More cost-effective than comparable exhausts for classic vehicles
  • High-flow Thrush mufflers feature spun-locked heads and reversible chambers
  • Includes all necessary hardware
  • Stock tailpipe exit design

Need help?Call our product expert1-866-529-0412
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Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

0
What is an air injection fitting? I just got collectors on my headers. I got now three bolts.Fred B.May 23, 2024
Best Answer:Hi Fred, thanks for initiating contact. An air injection fitting, in the context of exhaust systems, is a component that allows for the connection of an air injection system to the exhaust headers. This fitting is designed to introduce fresh air into the exhaust stream to help reduce emissions by promoting more complete combustion of fuel in the engine. In your case, with collectors on your headers and three bolts, it seems like you have a different setup than one requiring air injection fittings. Collectors are where the exhaust gases from different cylinders combine before exiting the exhaust system. The presence of three bolts indicates a different type of connection compared to air injection fittings, which are typically used for emissions control purposes. I suggest calling our parts specialists at 1-866-529-0412 to provide the vehicle information so we can help you look for the right part. Have a good one.
Grace G.STAFFMay 24, 2024