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Flowmaster 17654 - Header-back System Dual Rear/Side Exit AMT Moderate/Aggressive Sound

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$567.95

$631.95

You save: $64.00 (10%) off MSRP

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This part fits

  1. 1972 Chevrolet C10 Pickup Base
  2. 1972 GMC C15/C1500 Pickup Base 5.0L V8 cid:307 cc:5031
  3. 1972 GMC C15/C1500 Pickup Base
  4. 1972 Chevrolet C10 Pickup Base 5.0L V8 cid:307 cc:5031
  5. 1971 Chevrolet C10 Pickup Base
  6. 1971 Chevrolet C10 Pickup Base 5.0L V8 cid:307 cc:5031
  7. 1971 GMC C15/C1500 Pickup Base
  8. 1971 GMC C15/C1500 Pickup Base 5.0L V8 cid:307 cc:5031
  9. 1970 GMC C15/C1500 Pickup Base
  10. 1970 Chevrolet C10 Pickup Base 5.0L V8 cid:307 cc:5031
  11. 1970 Chevrolet C10 Pickup Base
  12. 1970 GMC C15/C1500 Pickup Base 5.0L V8 cid:307 cc:5031
  13. 1969 Chevrolet C10 Pickup Base
  14. 1969 Chevrolet C10 Pickup Base 5.3L V8 cid:327 cc:5358
  15. 1969 GMC C15/C1500 Pickup Base
  16. 1969 GMC C15/C1500 Pickup Base 5.0L V8 cid:307 cc:5031
  17. 1969 Chevrolet C10 Pickup Base 5.0L V8 cid:307 cc:5031
  18. 1968 Chevrolet C10 Pickup Base 5.0L V8 cid:307 cc:5031
  19. 1968 GMC C15/C1500 Pickup Base 5.0L V8 cid:307 cc:5031
  20. 1968 GMC C15/C1500 Pickup Base 5.3L V8 cid:327 cc:5358
  21. 1968 Chevrolet C10 Pickup Base 5.3L V8 cid:327 cc:5358
  22. 1967 GMC C15/C1500 Pickup Base 5.3L V8 cid:327 cc:5358
  23. 1967 Chevrolet C10 Pickup Base 4.6L V8 cid:283 cc:4638
  24. 1967 GMC C15/C1500 Pickup Base 5.0L V6 cid:305 cc:5012
  25. 1967 Chevrolet C10 Pickup Base 5.3L V8 cid:327 cc:5358
  26. show all...
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About this product

Part #: 17654

Flowmaster's American Thunder crossmember-back exhaust system for the 1967 - 1972 GM C10/C15 1/2 ton 2WD (Coil Spring) pickup truck is perfect for the person looking for moderate to aggressive sound levels with all of the performance benefits that you would expect from Flowmaster. This crossmember-back DOR/DOS (Dual Out Rear, Dual Out Side) system features dual Super 44 Series mufflers, 2.50 in. mandrel bent aluminized tubing and all the hardware necessary for a great fitting installation. (Stainless tips sold separately). This system is routed in a fashion that accommodates both long and short wheelbases with automatic or manual transmissions, and provides adequate clearance for substantially lowered vehicles. The exhaust system is covered by Flowmaster's 3 Year Limited Warranty.

More Details

Exhaust SeriesAmerican Thunder
Exhaust TypeDual
Exit PositionDual Out Rear
Exit PositionDual Out Side
Exit StyleStraight
Heat Shield AttachedNo
Inlet Diameter2.500 in.
Inlet Inside Diameter2.500 in.
MaterialAluminized Steel
Muffler Count2
Muffler Part NumberKit Only
Muffler SeriesSuper 44 Series
Outlet Diameter2.500 in.
Outlet Outside Diameter2.500 in.
Single or DualDual
Sound LevelModerate/Aggressive
System TypeHeader Back
Tail Pipe Diameter2.500 in.
Tip Quantity0
TitleFlowmaster 17654 Header-back System - Dual Rear/Side Exit - AMT - Moderate/Aggressive Sound
Tubing Diameter2.500 in.
Additional Documents
  1. Certificate of Originpdf
  2. Installation Instructionspdf
  3. Warrantypdf

See what our community says about flowmaster products

product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Morr aggressive sound
What were you trying to accomplish by adding this product?
Improved exhaust note
Was it easy install? Any installation tips that will help others?
Professionally installed
Once you’ve had a chance to use the product, did it meet your expectations?
Yes
View on Deandre's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Reviews online and sound from YouTube videos
What were you trying to accomplish by adding this product?
Better exhaust note
Was it easy install? Any installation tips that will help others?
Took a couple hours to get everything mocked up, welded and hung. Overall an easy install. Did everything at home
Once you’ve had a chance to use the product, did it meet your expectations?
Awesome sound, very deep and not too loud
View on Josh's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
On the car when i got it.
Any additional comments?
Good sounding exhaust but a lil quiet for my taste.
View on Reggie's build
Gianfranco Estremadoyro

157

Gianfranco Estremadoyro
2009 Ford Mustang
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
The sound is amazing!
Was it easy install? Any installation tips that will help others?
Super easy install.
Once you’ve had a chance to use the product, did it meet your expectations?
Exceeded expectations.
View on Gianfranco's build
Brandon Beres

29

Brandon Beres
2014 Ram 1500
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
The sound is amazing
What were you trying to accomplish by adding this product?
Improved appearance
View on Brandon's build
California prop 65 warningWARNING: Cancer and Reproductive Harm www.p65warnings.cs.gov

*Some manufacturer restrictions apply.

About Flowmaster

Manufacturer of performance exhaust systems, mufflers, cold air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels.

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