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Product
Price
- Dynomax Exhaust System Kit
- Manifold Dual Kit Not Emissions Legal
- Dynomax Dynomax 89003 Exhaust System Kit
- Dual Pipe Kit
- Product Attributes:
- California Proposition 65: No
-
Features:
- 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
- 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.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1975 - GMC K25 | V | - | 8 Cyl 6.6L | 400 |
- Dynomax Exhaust System Kit
- Header Dual Kit Not Emissions Legal
- Dynomax Dynomax 89004 Exhaust System Kit
- Dual Pipe Kit
- Product Attributes:
- California Proposition 65: No
-
Features:
- 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 headers
- 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
- tail pipes 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
- headers are for racing use only and not intended or applicable for highway use
- Give your vintage vehicle’s exhaust system an upgrade with a DynoMax® dual header kit. Designed to attach to headers, it features a special reducer that allows for a variety of mounting options.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1975 - GMC K15 | V | - | 8 Cyl 5.7L | 350 |
- Dynomax Exhaust System Kit
- Header Dual Kit Not Emissions Legal
- Dynomax Dynomax 89007 Exhaust System Kit
- Dual Pipe Kit
- Product Attributes:
- California Proposition 65: No
-
Features:
- COMPATIBILITY -- Designed for a variety of full-size 1975-87 GMC trucks and Chevrolet/GMC SUVs 2WD
- 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 headers
- 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
- tail pipes exit each side of vehicle behind rear tires
- for trucks with OE catalytic converter due to cross member location
- 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
- 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.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Body | CID |
|---|---|---|---|---|---|
| 1975 - GMC C25 | V | - | 8 Cyl 5.7L | Cab & Chassis | 350 |
- Dual; Dual Rear Same Side Exit; Includes 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel;Intended For Race Use Only Not Legal For Use On Vehicles Originally Equipped w/Catalytic Converter
- American Thunder Header Back Exhaust System; Dual; Dual Rear Same Side Exit; Includes 2.5 in. Tubing/Super 44 Series™ Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel;
- American Thunder Header Back Exhaust System
- Product Attributes:
- Tubing Diameter: 2.500 In.
- Tubing Material: Aluminized Steel
- Exhaust Type: Dual
- Muffler Type: Welded Baffle
- Sound Level: Moderate/aggressive
- Inlet Diameter: 2.500 In.
- WARNING CA Proposition 65: No
- Exhaust Series: American Thunder
- Exit Style: Straight
- Muffler Series: Super 44
- Inlet Inside Diameter: 2.500 In.
- Outlet Outside Diameter: 2.500 In.
- Tail Pipe Diameter: 2.500 In.
- Exit Position: Dual Rear Same Side
- Tip Diameter: N/a
- Muffler Count: 2
- System Type: Header Back
-
Features:
- Limited Lifetime Warranty
- Moderate Exterior Exhaust Tone
- Includes Hangers and Hardware For Easy Installation
- Header Back System
- Dual Out Rear Exit
- Dyno Tuned for Maximum Performance
- Premium Flowmaster Quality
- Famous Flowmaster sound
- Multiple Exit Options
- Patented Delta Flow Technology
- Made in the USA
- 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.
-
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.
Additional Fitment Information:
| Vehicle | Bed Length | Body |
|---|---|---|
| 1975 - GMC C25 | 96.0 | Crew Cab Pickup |
- Dynomax Exhaust System Kit
- Manifold Dual Kit Not Emissions Legal
- Dynomax Dynomax 89006 Exhaust System Kit
- Dual Pipe Kit
- Product Attributes:
- California Proposition 65: No
-
Features:
- COMPATIBILITY -- Designed for a variety of full-size 1975-87 GMC trucks and Chevrolet/GMC SUVs 2WD
- 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
- tail pipes exit each side of vehicle behind rear tires
- for trucks with OE catalytic converter due to cross member location
- 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
- 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.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Body | CID |
|---|---|---|---|---|---|
| 1975 - GMC C25 | V | - | 8 Cyl 5.7L | Standard Cab Pickup | 350 |
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