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Flowmaster 817129 - American Thunder Header Back Exhaust System

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$611.95

$679.95

You save: $68.00 (10%) off MSRP

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This part fits

  1. 1968 Chevrolet Camaro RS 5.3L V8 cid:327 cc:5358
  2. 1968 Pontiac Firebird Base 6.6L V8 cid:400 cc:6555
  3. 1968 Pontiac Firebird Base 6.6L V8 cid:400
  4. 1968 Pontiac Firebird Base 5.7L V8 cid:350 cc:5733
  5. 1968 Chevrolet Camaro SS 6.5L V8 cid:396 cc:6489
  6. 1968 Chevrolet Camaro SS 6.5L V8 cid:396
  7. 1968 Pontiac Firebird Base 5.7L V8 cid:350
  8. 1968 Pontiac Firebird 400 6.6L V8 cid:400
  9. 1968 Pontiac Firebird 350 5.7L V8 cid:350
  10. 1968 Chevrolet Camaro SS 5.7L V8 cid:350
  11. 1968 Chevrolet Camaro RS 4.1L L6 cid:250 cc:4097
  12. 1968 Chevrolet Camaro Base 3.8L L6 cid:230
  13. 1968 Chevrolet Camaro Base 3.8L L6 cid:230 cc:3769
  14. 1968 Chevrolet Camaro Base 4.1L L6 cid:250
  15. 1968 Chevrolet Camaro Base 4.1L L6 cid:250 cc:4097
  16. 1968 Chevrolet Camaro Base 4.1L L6 cid:250 cc:4098
  17. 1968 Chevrolet Camaro RS 4.1L L6 cid:250 cc:4098
  18. 1968 Chevrolet Camaro RS 4.1L L6 cid:250
  19. 1968 Chevrolet Camaro RS 5.4L V8 cid:327
  20. 1968 Chevrolet Camaro Base 5.3L V8 cid:327 cc:5358
  21. 1968 Chevrolet Camaro Base 5.4L V8 cid:327
  22. 1968 Chevrolet Camaro RS 3.8L L6 cid:230
  23. 1968 Chevrolet Camaro RS 3.8L L6 cid:230 cc:3769
  24. 1967 Chevrolet Camaro 4.1L L6 cid:250 cc:4098
  25. 1967 Chevrolet Camaro 5.3L V8 cid:327 cc:5358
  26. 1967 Pontiac Firebird Base 6.6L V8 cid:400 cc:6555
  27. 1967 Pontiac Firebird Base 6.6L V8 cid:400
  28. 1967 Pontiac Firebird 400 6.6L V8 cid:400
  29. 1967 Pontiac Firebird HO 6.6L V8 cid:400
  30. 1967 Chevrolet Camaro 4.1L L6 cid:250 cc:4097
  31. 1967 Chevrolet Camaro 3.8L L6 cid:230 cc:3769
  32. 1967 Chevrolet Camaro 6.5L V8 cid:396 cc:6489
  33. 1967 Chevrolet Camaro 5.7L V8 cid:350
  34. 1967 Chevrolet Camaro 4.9L V8 cid:302 cc:4949
  35. show all...
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About this product

Part #: 817129

For the person looking for a complete Header-back dual exhaust system with an aggressive tone. With easy fit in mind, Flowmaster's America Thunder system for GM F-Body cars include specially-selected Super 44 mufflers to make your Camaro or Firebird come alive. This Header-back dual exhaust system uses 2.50 in. 409S stainless steel tubing! And a durable H-pipe design that delivers improved throttle response, power and mileage. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

More Details

Exhaust SeriesAmerican Thunder
Exhaust TypeDual
Exit PositionDual Side
Exit StyleStraight
Heat Shield AttachedNo
Inlet Diameter2.500 in.
MaterialStainless Steel
Muffler Count2
Muffler Part Number842546
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.
TitleFlowmaster 817129 Header-back System - Dual Side Exit - American Thunder - 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

Sam Jacobson

451

Sam Jacobson
2013 Dodge Dart
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?
I wanted a little more rumble from the car at idle.
What were you trying to accomplish by adding this product?
Have more idle, replaced the Flowmaster dBX muffler for the HP-2 Shorty.
Once you’ve had a chance to use the product, did it meet your expectations?
With resonated tips added at the same time, I have enjoyed the sound of my exhaust more than I ever have! When the car is cold my car's exhaust pops louder than ever and I love it! It is a muffler rated way higher on the Flowmaster exhaust chart!
View on Sam'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?
Price
What were you trying to accomplish by adding this product?
Lil more growl
Was it easy install? Any installation tips that will help others?
Professional
Once you’ve had a chance to use the product, did it meet your expectations?
Yes great healthy sound
View on Karl'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?
Cheap and effecfive. Won’t wear out.
Is this your first time buying from this brand? Did you consider other brands?
No.
Was it easy to install? Any installation tips that will help others?
Cut out the old, clamped in the new.
Once you've had a chance to use the product, did it meet your expectations?
Works fine. Sounds decent.
View on Mason'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?
Performance and sound
What were you trying to accomplish by adding this product?
Power and sound
Once you’ve had a chance to use the product, did it meet your expectations?
Very happy with it. Car is very loud but with a nice deep tone.
View on Dakota'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?
the sound
What were you trying to accomplish by adding this product?
get rid of the crap mufflers on my pypes exhaust
View on Jacob'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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