

Flowmaster 17654 Header-back System - Dual Rear/Side Exit - AMT - Moderate/Aggressive Sound
Key item features
- Sound Profile: Features Super 44 Series mufflers for a deep, powerful, and moderate to aggressive exterior exhaust tone.
- Construction Material: Built with mandrel-bent 16-gauge aluminized steel tubing for durability.
- Installation Inclusions: Comes complete with all necessary hangers and hardware for straightforward installation.
- System Configuration: A crossmember-back true dual exhaust system with an H-pipe crossover for maximum power.
- Tailpipe Options: Offers four distinct choices for tailpipe exits, including angled down, straight out, side exit, or dump style.
- Vehicle Compatibility: Designed for 1967-1972 Chevrolet/GMC C10 and C15 1/2 Ton 2WD trucks with V8 engines and coil spring suspension.
- Design Clearance: Provides adequate clearance, even for substantially lowered vehicles.
Specs
- Vehicle model17654
- Vehicle year1967, 1968, 1969, 1970, 1971, 1972
- Vehicle makeChevrolet, GMC
- Vehicle fitment typeSpecific
- Automotive parts divisionPerformance
- BrandFlowmaster
- Free shipping
Free 30-day returns
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About this item
Product details
This American Thunder exhaust system is specifically designed for 1967-1972 Chevrolet and GMC C10 and C15 1/2 ton 2wd trucks with coil spring suspension. The system is perfect for the person looking for a moderate to aggressive interior and exterior sound level. Starting at the cross-member back, the exhaust comes complete with a built-in H-pipe crossover, all mandrel-bent 2.50 in. aluminized steel tubing, a pair of Super 44 Series performance mufflers, and your choice of four tailpipe exits. One set slightly angled down to clear larger rear bumpers, one set straight out the back under the rear bumper, out the sides behind the rear tires for that classic truck look or a dump style exiting behind the rear tires level with the body. The system includes all hardware necessary for installation and provides adequate clearance for substantially lowered vehicles. The exhaust system is covered by our 3-year Limited Warranty. If you prefer Stainless Steel construction, check out system# 817654 which comes with our Lifetime Limited Warranty. Notes: Fits both short and long wheelbase trucks.;
- Super 44 Series Mufflers for Deep Powerful Sound
- Mandrel-bent 16-gauge Aluminized Steel Tubing
- Includes Hangers and Hardware for Installation
- Moderate to Aggressive Exterior Exhaust Tone
- Crossmember-back True Dual Exhaust System
- H-pipe Crossover for Maximum Power
- Does Not Include Header Reducers
- Four Choices of Tailpipe Exits
Specifications
Vehicle model
Vehicle year
Vehicle make
Vehicle fitment type
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warnings
Compare with similar items
| Product | Viewing this itemFlowmaster 17654 Header-back System - Dual Rear/Side Exit - AMT - Moderate/Aggressive Sound ![]() $870.95 current price $870.9554.8 out of 5 Stars. 5 reviews | Flowmaster 17139 Header-back System - Dual Rear Exit - American Thunder - Moderate/Aggressive ![]() $870.95 current price $870.9515 out of 5 Stars. 1 reviews | Flowmaster 818166 American Thunder Cat-Back Exhaust System ![]() $911.95 current price $911.95 | Flowmaster 17282 Header-back System - Dual Rear Exit - American Thunder - Aggressive Sound ![]() $819.95 current price $819.9515 out of 5 Stars. 1 reviews | MagnaFlow Sys C/B 97-99 Dodge Dakota Duals Ec ![]() $850.00 current price $850.00 | Flowmaster 818131 American Thunder Filter-Back Exhaust System - 3.0 Inch Single Out Rear Exit ![]() $325.95 current price $325.95 | MagnaFlow Exhaust Products Performance Exhaust System 19676 ![]() $1,132.67 current price $1,132.67 | For Ford Mustang 2024 Magnaflow Exhaust Kit ![]() $1,064.00 current price $1,064.00 | MagnaFlow Sys C/B Mini Cooper 02 Standard ![]() $831.00 current price $831.00 | MagnaFlow Sys A/B Pontiac G8 GT/GXP 6.0L/6.2L ![]() $866.00 current price $866.00 |
|---|
| Vehicle model | 17654Flowmaster 17654 Header-back System - Dual Rear/Side Exit - AMT - Moderate/Aggressive Sound | 17139Flowmaster 17139 Header-back System - Dual Rear Exit - American Thunder - Moderate/Aggressive | 818166Flowmaster 818166 American Thunder Cat-Back Exhaust System | MustangFlowmaster 17282 Header-back System - Dual Rear Exit - American Thunder - Aggressive Sound | DakotaMagnaFlow Sys C/B 97-99 Dodge Dakota Duals Ec | GladiatorFlowmaster 818131 American Thunder Filter-Back Exhaust System - 3.0 Inch Single Out Rear Exit | 20695559-101MagnaFlow Exhaust Products Performance Exhaust System 19676 | RangerFor Ford Mustang 2024 Magnaflow Exhaust Kit | CooperMagnaFlow Sys C/B Mini Cooper 02 Standard | G8 GTMagnaFlow Sys A/B Pontiac G8 GT/GXP 6.0L/6.2L |
|---|---|---|---|---|---|---|---|---|---|---|
| Vehicle year | 1967Flowmaster 17654 Header-back System - Dual Rear/Side Exit - AMT - Moderate/Aggressive Sound | 1969Flowmaster 17139 Header-back System - Dual Rear Exit - American Thunder - Moderate/Aggressive | -Flowmaster 818166 American Thunder Cat-Back Exhaust System | 1967Flowmaster 17282 Header-back System - Dual Rear Exit - American Thunder - Aggressive Sound | 97-99MagnaFlow Sys C/B 97-99 Dodge Dakota Duals Ec | 2021Flowmaster 818131 American Thunder Filter-Back Exhaust System - 3.0 Inch Single Out Rear Exit | -MagnaFlow Exhaust Products Performance Exhaust System 19676 | 2024For Ford Mustang 2024 Magnaflow Exhaust Kit | -MagnaFlow Sys C/B Mini Cooper 02 Standard | -MagnaFlow Sys A/B Pontiac G8 GT/GXP 6.0L/6.2L |
| Vehicle make | ChevroletFlowmaster 17654 Header-back System - Dual Rear/Side Exit - AMT - Moderate/Aggressive Sound | Chevrolet, PontiacFlowmaster 17139 Header-back System - Dual Rear Exit - American Thunder - Moderate/Aggressive | -Flowmaster 818166 American Thunder Cat-Back Exhaust System | FordFlowmaster 17282 Header-back System - Dual Rear Exit - American Thunder - Aggressive Sound | 46-75443 MAMagnaFlow Sys C/B 97-99 Dodge Dakota Duals Ec | JeepFlowmaster 818131 American Thunder Filter-Back Exhaust System - 3.0 Inch Single Out Rear Exit | U7-L1773 MAMagnaFlow Exhaust Products Performance Exhaust System 19676 | U7-L1767 MAFor Ford Mustang 2024 Magnaflow Exhaust Kit | 46-75449 MAMagnaFlow Sys C/B Mini Cooper 02 Standard | 46-75914 MAMagnaFlow Sys A/B Pontiac G8 GT/GXP 6.0L/6.2L |
| Vehicle fitment type | SpecificFlowmaster 17654 Header-back System - Dual Rear/Side Exit - AMT - Moderate/Aggressive Sound | SpecificFlowmaster 17139 Header-back System - Dual Rear Exit - American Thunder - Moderate/Aggressive | SpecificFlowmaster 818166 American Thunder Cat-Back Exhaust System | SpecificFlowmaster 17282 Header-back System - Dual Rear Exit - American Thunder - Aggressive Sound | SpecificMagnaFlow Sys C/B 97-99 Dodge Dakota Duals Ec | SpecificFlowmaster 818131 American Thunder Filter-Back Exhaust System - 3.0 Inch Single Out Rear Exit | SpecificMagnaFlow Exhaust Products Performance Exhaust System 19676 | SpecificFor Ford Mustang 2024 Magnaflow Exhaust Kit | SpecificMagnaFlow Sys C/B Mini Cooper 02 Standard | SpecificMagnaFlow Sys A/B Pontiac G8 GT/GXP 6.0L/6.2L |
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Customer ratings & reviews
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Showing 1-3 of 5 reviews
Great fitting kit
Installed this on my 1969 suburban. small block with shorty headers. Fit perfectly and sounds great. My last system had a bad echo inside but this one is so much better. At idle is has a nice rumble. As a note two of the 4 types of rear exits in the kit don't clear the spare tire well on the suburban or my hidden hitch. I used the ones that point to the edges of the rear bumper at about a 45deg and fit perfectly. The last frame support had to be shifted back because of the fuel tank mounts so if your truck has a rear tank inside the frame you might have to adjust for this.
Sounded great!
I used this kit on a 63 C10...not what it was designed for. Plenty of pipe and bends to make a great looking kit work on my application.
Very happy.
This kit fit awesome! I am super happy with it. I would buy this again for another vehicle.
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