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Flowmaster American Thunder Aluminized Steel Cat-Back Exhaust - Split Side/Rear Exit (04-08 4.6L)

Market Price $652.99 You Save 13% ($86.02)
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$566.97 (each)

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  • Item T18300A
  • MPN# 17417

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Features & Details

  • Moderate Flowmaster Super 40 Series Sound
  • Durable Aluminized Steel Construction
  • 3 in. Inlet, Dual 2.5 in. Outlet Mandrel-Bent Tubing
  • 3 in. Polished Stainless Steel Tips
  • Bolt-On Installation; Some Trimming May Be Required
  • Choice of Side or Rear Exit
  • Made in the USA
  • Fits 2004-2008 4.6L F-150s
Signature Flowmaster Sound. When you step on the gas pedal to hear your 4.6L engine roar, but the sound is not satisfying, it may be time to give your F-150 that unmistakable Flowmaster sound with the American Thunder Aluminized Steel Cat-Back Exhaust. Flowmaster designed this cat-back to give your truck a moderate exhaust note with the included Super 40 Series muffler. To ensure you are getting maximum performance, this cat-back was dyno tuned to provide an improvement in throttle response, mileage and power. On top of it all, Flowmaster gives you the option to mount the exhaust tips exiting at the rear of your truck or behind each rear tire.

Quality Construction. Proudly made in the USA, this Flowmaster American Thunder Cat-Back Exhaust is constructed from 3 in. inlet / dual 2.5 in. outlet mandrel bent aluminized steel tubing for strength and corrosion resistance. This cat-back exhaust features a single inlet / dual outlet Super 40 Series Muffler that connects to a pair of polished 3 in. exhaust tips for great looks and sound. As an added bonus, the tips are embossed with the Flowmaster logo for true custom styling.

Bolt-On Installation. Flowmaster engineered this kit to be a direct upgrade replacement for your F-150 stock exhaust. All of the necessary hardware is included and installs easily with basic hand tools, with no extra modifications to your F-150. Depending on your cab and bed size, some minor cutting to the piping may be required.

Application. This Flowmaster American Thunder Aluminized Steel Cat-Back Exhaust System is designed to fit all 2004 to 2008 F-150s powered by the 4.6L V8 engine.

Fitment: 2004 2005 2006 2007 2008 Details

What's in the Box
  • (1) Inlet Pipe
  • (1) Extension Pipe
  • (1) Muffler
  • (1) Right Tailpipe
  • (1) Left Tailpipe - Front
  • (1) Left Tailpipe - Rear
  • (2) Side Exit Pipes
  • (2) Rear Exit Pipes
  • (1) Frame Hanger - Rear
  • (1) Rubber Hanger
  • (6) 2-1/2" Clamps
  • (1) 5/16" x 1-1/4" Bolt
  • (2) 5/16" Flat Washers
  • (1) 5/16" Lock Washer
  • (1) 5/16" Nut
  • (2) 7/16" Hanger Keepers
  • (2) 3" Clamps
  • (1) Clamp Hanger
Installation Info
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