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Flowmaster 2.5IN(O)/OUT(O) 40 Series Muffler

The Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. 40 Series - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound Universal Muffler - Some adaptation may be required.
  • Excellent Street/Strip and Off Road application
  • Durable fully welded 16 gauge aluminized steel
  • Aggressive Sound Exterior Exhaust Tone
  • Noticeable interior resonance

The Flowmaster 42543 40 Series muffler is designed to deliver an aggressive exterior and interior exhaust tone, perfect for enthusiasts seeking that classic Flowmaster sound. Constructed from durable 16-gauge aluminized steel and fully MIG welded, this muffler offers exceptional durability and longevity for both street and strip applications. Its universal fitment with a 2.50 inch offset inlet and outlet allows for versatile installation, although some adaptation may be required for specific vehicle configurations. This muffler is suitable for a variety of applications, including off-road use, providing a balance of performance and sound quality. The distinctive exterior exhaust note is complemented by noticeable interior resonance, giving your vehicle a commanding presence on the road or track. Whether you're upgrading for sound, performance, or both, the Flowmaster 40 Series provides an excellent solution that combines rugged construction with a signature tone that enthusiasts love.

Features:

  • Aggressive exterior and interior exhaust tone for a commanding sound
  • Constructed of durable 16-gauge aluminized steel for longevity
  • Fully MIG welded for maximum durability and strength
  • Universal fitment with 2.50 inch offset inlet and outlet, with some adaptation may be required
  • Ideal for street, strip, and off-road applications