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1968-70 Mopar B-Body - 2.5YouTube Button

Flowmaster American Thunder Header-back Exhaust System

1968-1970 Mopar B-Body with V8 engine.

PART# 17382

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$848.00   Suggested Retail
$762.95   Holleydays Price
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Aggressive sound


This American Thunder system is a true dual exhaust system featuring large 3.00-inch mandrel-bent aluminized steel tubing with a built-in H-pipe crossover assembly flowing into a pair of Super 40 Series performance mufflers. The mufflers deliver a moderately aggressive exterior sound with a moderate interior tone for enthusiasts who want their performance to be heard. The dual 3.00-inch mandrel-bent tailpipes exit straight out the back under the rear bumper. The kit does not include exhaust tips, allowing you to choose the tips of your choice, or run the pipes as is for a muscular look. Includes all necessary hardware, parts and easy to follow instructions. Like all Flowmaster systems, the benefits include improved throttle response, power, mileage and is covered by our 3-year Limited Warranty.


  • H-pipe Crossover for Maximum Power and Deep Tone
  • Headers-back True Dual 3.00-inch Exhaust System
  • Super 40 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
  • Does Not Include Header Reducer Cones
  • Dyno Tuned for Maximum Performance
  • Includes 3-year Limited Warranty
  • Easy to Follow Instructions


Emission Code3
Exhaust SeriesDelta Force
Exit PositionDual Out Rear
Heat ShieldNo
Inlet Diameter (in)3
MaterialAluminized Steel
Muffler Part Number953046
Muffler Quantity2
Muffler SeriesSuper 40 Series
Outlet Diameter (in)3
Product TypeExhaust System
Single DualDual
Sound LevelAggressive
System TypeHeader-back
Tip QuantityNot Included
Tubing Diameter (in)3
California Proposition 65 RequiredNo
Part Number17382



This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

Tech Resources

Does Not include header reducer cones.


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