1978 GMC C25 Exhaust System Kits

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Keep Your 1978 GMC C25 in Top Shape with Quality Exhaust System Kits

Whether you’re repairing or upgrading your Exhaust System Kit, using high-quality parts is key to keeping your 1978 GMC C25 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Exhaust System Kits. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 1978 GMC C25 Exhaust System Kit at Advance Auto Parts is around $611.39, with a range that starts at $236.99 and goes up to $1,025.99. With 4 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Exhaust System Kit, Truck Stock Dual Headers, and Header Back Exhaust System start at just $236.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Exhaust System Kit, don’t forget to check out other key components like Exhaust Manifold and Headers and Exhaust Mufflers. At Advance Auto Parts, we’re here to help you keep your 1978 GMC C25 in peak condition, inside and out.

Essential 1978 GMC C25 Exhaust System Kits

Dynomax – Exhaust System Kit (Part No.89007)

Exhaust System Kit

from

$236.99
Give your vintage vehicle’s exhaust system an upgrade with a DynoMax dual header kit. Designed to attach to OE headers, it features a special reducer that allows for a variety of mounting options.

Product Features:
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Hooker Headers – Header Back Exhaust System (Part No.16523HKR)

Header Back Exhaust System

from

$357.99
Designed for Hooker Competition header back applications using header 2452HKR. This system uses 2.25-inch 16-gauge aluminized tubing to reduce back-pressure and improve engine efficiency. The system is mandrel bent to eliminate any crush sections in the tubing to help maximize the exhaust flow for better performance.

Product Features:
  • Mandrel Bent Tubing Eliminates Restrictions in Bends and Improves Exhaust Flow
  • Reduces Backpressure
  • Improves Engine Efficiency
  • Hardware Included
  • Instructions Included
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Hooker Headers – Truck Stock Dual Headers (Part No.16622HKR)

Truck Stock Dual Headers

from

$409.99
Designed for manifold back applications. This system uses 2.25-inch 16-gauge aluminized tubing to reduce back-pressure and improve engine efficiency. The system is mandrel bent to eliminate any crush sections in the tubing to help maximize the exhaust flow for better performance.

Product Features:
  • Mandrel Bent Tubing Eliminates Restrictions in Bends and Improves Exhaust Flow
  • Reduces Backpressure
  • Improves Engine Efficiency
  • Hardware Included
  • Instructions Included
See More

Most Popular Exhaust System Kits for 1978 GMC C25s

Enhance your 1978 GMC C25 with one of the 4 Exhaust System Kits we have in stock, starting at just $236.99.

Dynomax – Exhaust System Kit (Part No.89007)

Exhaust System Kit

from

$236.99
Give your vintage vehicle’s exhaust system an upgrade with a DynoMax dual header kit. Designed to attach to OE headers, it features a special reducer that allows for a variety of mounting options.

Product Features:
See More

Hooker Headers – Truck Stock Dual Headers (Part No.16622HKR)

Truck Stock Dual Headers

from

$409.99
Designed for manifold back applications. This system uses 2.25-inch 16-gauge aluminized tubing to reduce back-pressure and improve engine efficiency. The system is mandrel bent to eliminate any crush sections in the tubing to help maximize the exhaust flow for better performance.

Product Features:
  • Mandrel Bent Tubing Eliminates Restrictions in Bends and Improves Exhaust Flow
  • Reduces Backpressure
  • Improves Engine Efficiency
  • Hardware Included
  • Instructions Included
See More

Hooker Headers – Header Back Exhaust System (Part No.16523HKR)

Header Back Exhaust System

from

$357.99
Designed for Hooker Competition header back applications using header 2452HKR. This system uses 2.25-inch 16-gauge aluminized tubing to reduce back-pressure and improve engine efficiency. The system is mandrel bent to eliminate any crush sections in the tubing to help maximize the exhaust flow for better performance.

Product Features:
  • Mandrel Bent Tubing Eliminates Restrictions in Bends and Improves Exhaust Flow
  • Reduces Backpressure
  • Improves Engine Efficiency
  • Hardware Included
  • Instructions Included
See More

Flowmaster Inc. – American Thunder Crossmember-Back Exhaust System (Part No.17742)

American Thunder Crossmember-Back Exhaust System

from

$1025.99
This American Thunder exhaust system was specially designed for 1973-1974 Chevrolet and GMC C10 and C15 1/2 ton and 3/4 ton 2wd trucks and is perfect for the person looking for moderate to aggressive interior and exterior sound levels. The Crossmember-Back exhaust system comes complete with a built-in H-pipe crossover, all mandrel-bent 2.50-inch aluminized steel tubing, a pair of Super 44 Series performance mufflers and your choice of tailpipe exits. Either dual out rear under the bumper for a muscular look or dual out the sides behind the rear tires for that classic truck look. The system includes all hardware necessary for installation and is designed to accommodate both long and short wheelbases, with either an automatic or manual transmission and provides adequate clearance for substantially lowered vehicles. The exhaust system is covered by our 3-year Limited Warranty. Notes: Does Not include exhaust tips, header reducer cones or downpipes for factory manifolds.

Product Features:
  • Super 44 Series Mufflers for Deep Powerful Sound
  • Mandrel-bent 16-gauge Aluminized Steel Tubing
  • Includes Hangers and Hardware for Installation
  • Aggressive to Moderate Exterior Exhaust Tone
  • Crossmember-Back True Dual Exhaust System
  • H-pipe Crossover for Maximum Power
  • Does Not Include Header Reducers or Downpipes for Factory Manifolds
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FAQs for 1978 GMC C25 Exhaust System Kits

What are the best-selling Exhaust System Kits for 1978 GMC C25s?

Out of 4 Exhaust System Kits that fit 1978 GMC C25s, the following parts are the top sellers:

What’s the price range for 1978 GMC C25 Exhaust System Kits?

The prices of Exhaust System Kits for the 1978 GMC C25 range from $236.99 up to $1,025.99 for the most premium parts.

What is the average price of an Exhaust System Kit for a 1978 GMC C25?

The average price for Exhaust System Kits for the 1978 GMC C25 is $611.39. Keep in mind the variety of part types within our Exhaust System Kit category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Exhaust System Kits for other GMC C25 model years?

Yes, we carry Exhaust System Kits for 2 model years of GMC C25s between 1975 and 1977. The following model years are the most popular for Exhaust System Kit purchases: 1977, 1976, and 1975.

What are the cheapest Exhaust System Kits for my 1978 GMC C25?

The cheapest 1978 GMC C25 Exhaust System Kits we carry are:

Does Advance Auto Parts sell Exhaust System Kits for any other 1978 GMC models?

Yes. We stock Exhaust System Kits for 6 other popular 1978 GMC models. Some of the most popular are 1978 Jimmy Exhaust System Kits, 1978 K25 Exhaust System Kits, 1978 K15 Exhaust System Kits, 1978 C15 Exhaust System Kits, and 1978 C35 Exhaust System Kits.

What types of Exhaust System Kits do you sell for my 1978 GMC C25?

We currently have just 1 Exhaust System Kit in stock for a 1978 GMC C25, and as of 6/2/26, it is an Exhaust System Kit.

Can I get help with 1978 GMC C25 Exhaust System Kit orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Exhaust System Kits and more.

What is your return policy for GMC C25 Exhaust System Kits?

Advance Auto Parts keeps returns simple. For new GMC C25 Exhaust System Kits and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.