FREE SHIPPING & HANDLING!*                           Order by 11 PM EST for Same Day Shipping!

Flowmaster American Thunder Exhaust Systems - Cars


Flowmaster
Flowmaster American Thunder Exhaust Systems - Cars

Product images may differ from actual product appearance.

Best suited to enthusiasts who want their cars to be heard while improving throttle response, power, and mileage. American Thunder Exhaust Systems are mandrel bent for optimum performance with specially selected mufflers. Made in the USA.

Features
  • Premium Flowmaster quality
  • Axle-back, cat-back, or header-back
  • 16-gauge stainless or aluminized steel tubing
  • Moderate to aggressive exterior exhaust tone
  • Necessary hangers & hardware included for simple installation

    JEGS Easy Kits are designed by JEGS professionals to help you get all the performance parts you need.


  • 30 Products
    Ford Mustang V6

    389-817488
    American Thunder Axle-Back Exhaust System
  • 2010 Ford Mustang 4.0L V6
  • 2.5" Tubing, 4" Polished SS Tips
  • Single Rear Exit
  • 60 Series Delta Flow Muffler
  • 409S Stainless Steel
  • $314.54
    Order Today Ships 10/29/14
    Ford Mustang V8

    389-817281
    American Thunder Header-Back Exhaust System
  • 1967-70 Ford Mustang V8
  • 2.5" Tubing, 3" Polished SS Tips
  • Dual Rear Exit
  • Super 44 Series Muffler
  • 409S Stainless Steel
  • $542.81
    Order Today Ships 10/29/14

    389-817282
    American Thunder Header-Back Exhaust System
  • 1967-70 Ford Mustang V8
  • 2.5" Tubing, 2.5" Turndown Tips
  • Dual Rear Exit
  • Super 44 Series Muffler
  • 409S Stainless Steel
  • $478.77
    Order Today Ships 10/29/14

    389-817273
    American Thunder Header-Back Exhaust System
  • 1964-66 Ford Mustang V8
  • 2.5" Tubing, 2.5" Polished SS Tips
  • Dual Rear Exit
  • Super 44 Series Muffler
  • 409S Stainless Steel
  • $649.99
    Ships
    Ford Mustang Cobra 4.6L V8

    389-817248
    American Thunder Cat-Back Exhaust System
  • 1999-2004 Ford Mustang Cobra 4.6L V8
  • 2.5" Tubing, 3" Polished SS Tips
  • Dual Rear Exit
  • Super 40 Series Muffler
  • 409S Stainless Steel
  • $532.32
    Order Today Ships 10/29/14
    Ford Mustang GT/Cobra 4.6L/5.0L

    389-817215
    American Thunder Cat-Back Exhaust System
  • 1998 Ford Mustang GT/Cobra 4.6L V8
  • 2.5" Tubing, 2.5" Polished SS Tips
  • Dual Rear Exit
  • Super 44 Series Muffler
  • 409S Stainless Steel
  • $564.99
    Order Today Ships 10/29/14

    389-817212
    American Thunder Cat-Back Exhaust System
  • 1994-97 Ford Mustang GT/Cobra 4.6L/5.0L
  • 2.5" Tubing, 2.5" Polished SS Tips
  • Dual Rear Exit
  • Super 44 Series Muffler
  • 409S Stainless Steel
  • $561.99
    Order Today Ships 10/29/14
    Ford Mustang GT/LX/Cobra 4.6L/5.0L V8

    389-817574
    American Thunder Cat-Back Exhaust System
  • 1986-98 Ford Mustang GT/LX/Cobra 4.6L/5.0L V8
  • 2.5" Tubing, No Tips
  • Dual Dump Exit
  • Super 44 Series Muffler
  • 409S Stainless Steel
  • $325.00
    Ships
    GM A-Body/G-Body

    389-817456
    American Thunder Cat-Back Exhaust System
  • 1978-88 GM A-Body/G-Body V8
  • 2.5" Tubing, 3" Polished SS Tips
  • Dual Rear Exit
  • Super 44 Series Muffler
  • 409S Stainless Steel
  • $634.99
    Order Today Ships 10/29/14

    389-817457
    American Thunder Header-Back Exhaust System
  • 1978-88 GM A-Body/G-Body V8
  • 2.5" Tubing, 3" Polished SS Tips
  • Dual Rear Exit
  • Super 44 Series Muffler
  • 409S Stainless Steel
  • $665.99
    Ships
    GM Bel Air

    389-817174
    American Thunder Header-Back Exhaust System
  • 1955-57 Chevy Car V8 (Except Convertible/Wagon)
  • 2.5" Tubing, 3" Polished SS Tips
  • Dual Rear Exit
  • Super 40 Series Muffler
  • 409S Stainless Steel
  • $650.00
    Ships
    GM Camaro/Firebird 3.4L V6

    389-817356
    American Thunder Cat-Back Exhaust System
  • 1993-95 GM Camaro/Firebird 3.4L V6
  • 2.5" Tubing, 3" Polished SS Tips
  • Dual Rear Exit
  • 80 Series Muffler
  • 409S Stainless Steel
  • $453.54
    Order Today Ships 10/29/14
    GM Camaro/Firebird 3.6L

    389-817483
    American Thunder Axle-Back Exhaust System
  • 2010-14 Chevy Camaro 3.6L V6
  • 2.5" Tubing, 4" Polished SS Tips
  • Dual Rear Exit
  • 40 Series Muffler
  • 409S Stainless Steel
  • $584.28
    Ships

    389-817572
    American Thunder Cat-Back Exhaust System
  • 2010-13 Chevy Camaro 3.6L
  • 3" Tubing, 4" Polished SS Tip
  • Dual Rear Exit
  • 40 Series Delta Flow Muffler
  • 409S Stainless Steel
  • $926.00
    Order Today Ships 10/29/14
    GM Camaro/Firebird V8

    389-817149
    American Thunder Header-Back Exhaust System
  • 1970-74 GM Camaro/Firebird V8
  • 2.5" Tubing, 2.5" Polished SS Tips
  • Dual Rear Exit
  • 50 Series (Slim Line) Muffler
  • 409S Stainless Steel
  • $699.99
    Ships

    389-817104
    American Thunder Header-Back Exhaust System
  • 1967-74 GM Camaro/Firebird V8
  • 1968-74 Chevy Nova V8
  • 2.5" Tubing, No Tips
  • Dual Rear Exit
  • 80 Series Muffler
  • 409S Stainless Steel
  • $9.99
    $595.95
    Ships
    GM Camaro/Firebird 5.0L/5.7L V8

    389-817234
    American Thunder Cat-Back Exhaust System
  • 1986-91 GM Camaro/Firebird 5.0L/5.7L V8
  • 3" Tubing, 3" Polished SS Tips
  • Dual Rear Exit
  • 80 Series Muffler
  • 409S Stainless Steel
  • $469.69
    Ships
    GM Chevy II/Nova

    389-817673
    American Thunder Crossmember-Back Exhaust System
  • 1962-67 Chevy II/Nova
  • 2.5" Tubing, 3" Polished SS Tips
  • Dual Out Side Exit
  • Super 44 Series Muffler
  • 409S Stainless Steel
  • $579.00
    Ships
    GM Chevy Nova V8

    389-817158
    American Thunder Header-Back Exhaust System
  • 1968-74 Chevy Nova V8
  • 2.5" Tubing, No Tips
  • Dual Rear Exit
  • Super 44 Series Muffler
  • 409S Stainless Steel
  • $499.99
    Ships
    GM Cobalt 2.0L/2.4L

    389-817579
    American Thunder Cat-Back Exhaust System
  • 2005-08 Cobalt 2.0L/2.4L
  • 2.5" Tubing, 4" Polished SS Tips
  • Single Rear Exit
  • 60 Series Muffler
  • 409S Stainless Steel
  • $645.00
    Order Today Ships 10/29/14
    GM Corvette 5.7L V8

    389-817662
    American Thunder Cat-Back Exhaust System
  • 1975-79 Corvette 5.7L V8
  • 2.5" Tubing, 3" Polished SS Tips
  • Dual Rear Exit
  • 50 Series Delta Flow Muffler
  • 409S Stainless Steel
  • $539.00
    Order Today Ships 11/06/14
    GM F-Body

    389-817571
    American Thunder Header-Back Exhaust System
  • 1975-81 GM F-Body V8 (Off-Road Use Only)
  • 2.5" Tubing, 4" No Tips
  • Dual Side Exit
  • 50 Series (Slim Line) Mufflers
  • 409S Stainless Steel
  • $9.99
    $699.99
    Order Today Ships 10/29/14
    GM Impala/Caprice

    389-17655
    American Thunder Crossmember-Back Exhaust System
  • 1965-68 Impala/Caprice
  • 2.5" Tubing, 4.25" x 2.25" Polished SS Tips
  • Dual Out Rear Exit
  • Super 40 Series Muffler
  • Aluminized Steel
  • $599.95
    Order Today Ships 11/06/14
    Mopar A-Body

    389-817585
    American Thunder Header-Back Exhaust System
  • 1967-74 Mopar A Body V8
  • 2.5" Tubing, No Tips
  • Dual Rear Exit
  • Super 40 Series Muffler
  • 409S Stainless Steel
  • $679.00
    Order Today Ships 10/29/14

    389-817584
    American Thunder Header-Back Exhaust System
  • 1963-66 Mopar A-Body V8
  • 2.5" Tubing, No Tips
  • Dual Rear Exit
  • Super 40 Series Muffler
  • 409S Stainless Steel
  • $679.00
    Order Today Ships 10/29/14
    Mopar B-Body

    389-817391
    American Thunder Header-Back Exhaust System
  • 1971-72 Mopar B-Body V8
  • 2.5" Tubing, No Tips
  • Dual Rear Exit
  • Super 40 Series Muffler
  • 409S Stainless Steel
  • $9.99
    $685.00
    Order Today Ships 10/29/14

    389-817390
    American Thunder Header-Back Exhaust System
  • 1968-70 Mopar B-Body V8
  • 2.5" Tubing, No Tips
  • Dual Rear Exit
  • Super 40 Series Muffler
  • 409S Stainless Steel
  • $9.99
    $679.00
    Ships
    Mopar Challenger/Barracuda V8

    389-817355
    American Thunder Header-Back Exhaust System
  • 1970-74 Dodge Challenger/Plymouth Barracuda V8
  • Dual Rear Exit
  • 2.5" Tubing, No Tips
  • Super 40 Series Muffler
  • 409S Stainless Steel
  • $9.99
    $679.00
    Order Today Ships 10/29/14
    Mopar Charger R/T 5.7L V8

    389-817508
    American Thunder Cat-Back Exhaust System
  • 2011-13 Dodge Charger R/T 5.7L V8
  • 2011-13 Chrysler 300 5.7L V8
  • 2.5" Tubing, 2.5" Polished SS Tips
  • Dual Rear Exit
  • Super 40 Series Muffler
  • 409S Stainless Steel
  • $645.99
    Ships
    Scion FR-S/Subaru BRZ 2.0L

    389-817596
    American Thunder Cat-Back Exhaust System
  • 2013 Scion FR-S and Subaru BRZ 2.0L
  • 2.5" Tubing, 4" Polished SS Tips
  • Dual Rear Exit
  • 80 Series Crossflow Muffler
  • 409S Stainless Steel
  • $498.00
    Order Today Ships 10/29/14

    30 Products