flowmaster

Flowmaster 425403 40 Series Muffler

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SKU:
19440749
MPN:
425403
Availability:
Usually ships the same or next business day. In stock at our CA, FL, GA, KS, MI, PA, TX, WA warehouses.
Shipping:
Calculated at Checkout
Stock Update:
02/05/2026 05:57:15 AM PST
$101.95
Stock Update:
02/05/2026 05:57:15 AM PST

Description

This item is brand-new, factory sealed.

Flowmaster 425403 2.50"In(D)/3"Out(C) 40 Series Muffler
  • Excellent Street/Strip and Off Road application
  • Noticeable interior resonance
  • Aggressive Sound Exterior Exhaust Tone
  • Durable fully welded 16 gauge aluminized steel
  • MIG welded for maximum durability
  • Manufacturer: Flowmaster
  • Brand: Flowmaster
  • Model: 425403
  • Item Weight: 10.21 pounds
  • Product Dimensions: 20.2 x 9.9 x 4.6 inches
  • Country of Origin: USA
  • Item model number: 425403
  • Exterior: Painted
  • Manufacturer Part Number: 425403
  • OEM Part Number: 425403

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.

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Warranty Information

All Items are Brand New, Factory Sealed and come with a standard warranty. [Read our policies]
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Flowmaster 425403 40 Series Muffler
$101.95