Flowmaster American Thunder Dual Out Rear Exhaust System – New Parts

flo-new-amer-thunder

Give your vehicle a classic performance sound and more powerpower, torque, throttle response and mileage. Install Flowmaster’s American Thunder exhaust system.

American Thunder, the “original” classic  Flowmaster sound is an  aggressive sound. A great choice for when you want to be heard.

These new systems feature:

  • Dual out rear
  • Built out of 409S stainless steel
  • Various chambered muffler(s) to achieve the aggressive sound inside and outside your car or truck and for performance gains
  • Dyno tuned for maximum performance
  • Bolt-on emissions-legal system
  • Designed for an easy fit
  • Includes all necessary parts and hardware for installation
  • Made in the USA
  • Covered by Flowmaster’s Lifetime Limited Warranty

The following new parts are now available.

AXLE-BACK817681

2015 Mustang Base Models w/2.3L EcoBoost or 3.7L V6 Engine
(Fastback Models Only)

P/N 817681

  • pair of chambered Super 10 Series mufflers for maximum performance
  • 3″ muffler inlet; 3″ muffler outlet
  • Black finish

Axle-back System for 2015  Ford Mustang GT Fastback w/5.0L V8 Engine
(Fastback/Hardtop Only)

P/N 817710

  • Super 44 Series mufflers – patented Delta Flow Technology
  • 3.00″ mandrel bent tubing
  • 2.5″ muffler inlet; 3″ muffler outlet
  • Black finish

CAT-BACKS

2015 Dodge Challenger R/T w/5.7L V8 Engine

817716P/N 817716

  • Utilizes the original factory exhaust tips
  • Pair of Super 40 Series mufflers – patented Delta Flow technology
  • 2.50″ Scavenger X-pipe assembly
  • Dual mandrel bent 2.50″ tailpipes for maximum performance
  • 2.5″ muffler inlet; 2.5″ muffler outlet

2015 Ford F-150 w/2.7L/3.5L EcoBoost, 3.5L TiVCT or 5.0L Engine817725
(Except Std. /Short Bed)

P/N 817725

  • 3.00″ mandrel bent tubing
  • Super 40 Series muffler – patented Delta Flow technology
  • Dual 2.50″ tailpipes
  • 3″ muffler inlet; 2.5″ muffler outlet
  • Dual 3.50″ stainless steel tips that can exit out the rear or out the side

2015 Ford Mustang GT, 5.0L, V8817730
(Fastback/Hardtop Only)

P/N 817730 

  • 3.00 mandrel bent tubing
  • 60 Series mufflers – patented Delta Flow technology
  • 4.00″ polished tips
  • 3″ muffler inlet; 3″ muffler outlet

2015 Ford Mustang Base Model w/2.3L EcoBoost Engine817735
(Fastback Models with hardtops only not convertibles)

P/N 817735

  • 2.50″ mandrel bent tubing
  • Dual 2.25″ tailpipes for maximum performance
  • Pair of Outlaw Series mufflers -Race proven sound reduction technology
  • 3″ muffler inlet; 3″ muffler outlet
  • Dual 4.00″ stainless steel tips that exit within the rear bumper valence

2015 Dodge Challenger SXT w/3.6L V6 Engine817737

P/N 817737

  • 2.50″ mandrel bent tubing for maximum performance
  • Scavenger X-pipe
  • Dual Super 44 Series mufflers – patented Delta Flow technology
  • Tuned resonators and stainless steel tips exit within the rear bumper valence

SCHEDULED AVAILABILITY 4/1/15:

817739

2015 Challenger SRT AMT, R/T Scat Pack, 6.2L, 6.4L

P/N 817739

  • 3.00″ mandrel bent tubing
  • Scavenger X-pipe
  • Super 40 Series mufflers
  • Quad 3.5″ dia. polished 304S W/embossed logo tips

2015 Dodge Charger SE, SXT, 3.6L, V6817741

P/N 817741

  • 2.5″ mandrel bent  16 Gauge tubing
  • Super 44 Series mufflers
  • Tailpipe resonators
  • 2.5″ brushed 304S tips
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