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Flowmaster American Thunder Crossmember-Back Exhaust System

1968-1970 Mopar B-Body with V8 engine, 3.0"

Part # 17382 Be the first to write a review
Estimated shipping date: 02/23/2022
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Delta Flow
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
  • Crossmember-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 or Downpipes for Factory Manifolds
  • Dyno Tuned for Maximum Performance
  • Includes 3-year Limited Warranty
  • Easy to Follow Instructions

About Flowmaster

Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound.

Brand Flowmaster
Emission Code5
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 TypeCrossmember-back
Tip QuantityNot Included
Tubing Diameter (in)3
California Proposition 65 RequiredNo
Part Number17382

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Does Not include header reducer cones or downpipes for factory manifolds.

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    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.