Flowmaster Mustang 40 Series Muffler

$9.33 (10%)
Part Number: 159 42443
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Flowmaster's original 40 Series Muffler delivers an aggressive exterior and interior tone. This muffler is constructed of sixteen gauge aluminized steel and fully MIG welded for durability. It also features a 2.25" inlet and outlet.

Product Features

  • Aggressive sound
  • Excellent Street/Strip and Off Road application
  • 13" body length / 9.75" body width

Note: This is a universal muffler. Some modification may be necessary for proper fitment.

Purchase the Flowmaster Mustang 40 Series Muffler for your Mustang from Steeda Autosports today!

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Fitment & Features


Manufacturer: Flowmaster

Installation Information:

Level of Difficulty: Medium
Install Time: About 1 Hour
Tools Required: Basic Shop Tools
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