Original 40 Series

Showing all 18 results

Image
SKU
Product
Price
  • Flowmaster 40 Series Chambered Muffler
    SKU: 43041
    • Delivers the original, aggressive Flowmaster tone inside and out — the classic 40 Series sound
    • Fully MIG welded 16 gauge aluminized steel construction for maximum durability
    • High-temperature paint finish stands up to real-world exhaust heat
    • Universal fitment with a 3.00″ inlet, ideal for street rod and custom builds
    • Iconic chambered design from the trusted Flowmaster company
  • Flowmaster 40 Series Chambered Muffler
    SKU: 8042441
    • Signature Flowmaster 40 Series sound — aggressive tone inside and outside the vehicle
    • 16 gauge 409S stainless steel, fully MIG welded for maximum durability
    • High-temperature paint finish for lasting protection against heat and the elements
    • Universal fitment for Truck/SUV builds and custom exhaust systems
    • 2.25″ inlet diameter with a 9.50″ body width in the classic chambered design
  • Flowmaster 40 Series Chambered Muffler
    SKU: 8042541
    • Delivers the original, aggressive Flowmaster tone inside and out
    • 16 gauge 409S stainless steel, fully MIG welded for lasting durability
    • 2.50-inch inlet and 9.50-inch body width with universal fitment
    • High-temperature paint finish stands up to heat and the elements
    • Chambered 40 Series design ideal for classic muscle car builds
  • Flowmaster 40 Series Chambered Muffler
    SKU: 8042543
    • Delivers the original, aggressive Flowmaster tone inside and out for a true muscle car sound
    • 16 gauge 409S stainless steel, fully MIG welded for maximum durability
    • High-temperature paint finish adds extra heat and corrosion protection
    • Universal fitment with a 2.50″ inlet and 9.50″ body width for versatile classic muscle car builds
    • Part of the legendary Original 40 Series chambered design that defined the Flowmaster company
  • Flowmaster 40 Series Chambered Muffler
    SKU: 8043043
    • Delivers the original, aggressive Flowmaster 40 Series sound — bold interior and exterior tone
    • Built from 16 gauge 409S stainless steel and fully MIG welded for maximum durability
    • 3.00″ inlet diameter with a 9.50″ body width for a strong flow foundation
    • Universal fitment makes it ideal for classic muscle car builds and custom exhaust systems
    • High-temperature paint finish helps it withstand the heat of hard driving
  • Flowmaster 40 Series Chambered Muffler
    SKU: 42541
    • Delivers the original, aggressive Flowmaster tone inside and out
    • Built from 16 gauge aluminized steel and fully MIG welded for durability
    • Chambered 40 Series design needs no packing that can burn out
    • Universal fitment with 2.50″ inlet and compact 19.00″ length for flexible installs
    • High-temperature paint finish stands up to serious exhaust heat
    • Ideal foundation for street rod and performance flowmaster exhaust systems
  • Flowmaster 40 Series Chambered Muffler
    SKU: 430402
    • Delivers the original, aggressive Flowmaster 40 Series sound inside and out
    • 16 gauge aluminized steel construction, fully MIG welded for maximum durability
    • High-temperature paint finish for added heat and corrosion protection
    • 3.00″ inlet with dual outlet location and a compact 9.50″ body width
    • Chambered performance muffler tuned for a bold, race-inspired tone
  • Flowmaster 40 Series Chambered Muffler
    SKU: 43043
    • Delivers the original, aggressive Flowmaster 40 Series tone — bold interior and exterior sound
    • Fully MIG welded 16 gauge aluminized steel construction for maximum durability
    • High-temperature paint finish stands up to real-world exhaust heat
    • Universal fitment with a 9.50 body width for versatile custom and Street Rod builds
    • Iconic chambered design from the Flowmaster company that defined the signature sound
  • Flowmaster 40 Series Chambered Muffler
    SKU: 42443
    • Delivers the signature aggressive Flowmaster 40 Series tone, both inside and out
    • Built from durable 16 gauge aluminized steel and fully MIG welded for strength
    • High-temperature paint finish stands up to exhaust heat
    • Universal fitment with a 2.25″ inlet and compact 19.00″ overall length for flexible installs
    • A proven, iconic choice for street rod and custom exhaust builds
  • Flowmaster 40 Series Chambered Muffler
    SKU: 42543
    • Delivers the original, aggressive Flowmaster 40 Series tone inside and out
    • 16 gauge aluminized steel, fully MIG welded for maximum durability
    • Universal fitment with a 2.50″ inlet and compact 19.00″ length for custom builds
    • High-temperature paint finish stands up to real exhaust heat
    • Ideal performance muffler for street rods and custom exhaust systems
  • Exhaust Muffler
    SKU: 425403
    • Delivers the original, aggressive Flowmaster tone inside and out
    • 16 gauge aluminized steel, fully MIG welded for maximum durability
    • High-temperature paint finish built to handle exhaust-system heat
    • Universal fitment with 2.50-inch dual inlet, ideal for Street Rod and custom builds
    • Compact 9.50-inch body width fits a wide range of exhaust routing projects
  • Flowmaster 40 Series Chambered Muffler
    SKU: 42441
    • Delivers the original, aggressive Flowmaster sound with a proven chambered design
    • Built from durable 16 gauge aluminized steel and fully MIG welded for maximum durability
    • Universal fitment with a 2.25″ inlet makes it a versatile choice for street rod and custom builds
    • High-temperature paint finish helps it stand up to real-world driving
    • Iconic 40 Series tone — one of the most recognizable performance mufflers on the street
  • Flowmaster 40 Series Chambered Muffler
    SKU: 80430402
    • Delivers the original, aggressive Flowmaster sound both inside and outside the cabin
    • Built from 16 gauge 409S stainless steel and fully MIG welded for maximum durability
    • High-temperature paint finish adds extra protection against heat and the elements
    • Universal fitment with a 3.00-inch inlet and dual outlet, ideal for classic muscle car builds
    • Part of the legendary Original 40 Series that defined the Flowmaster sound
  • Flowmaster 40 Series Chambered Muffler
    SKU: 8042443
    • Delivers the original, aggressive Flowmaster tone with a bold interior and exterior sound
    • Built from 16-gauge 409S stainless steel and fully MIG welded for maximum durability
    • High-temperature paint finish helps resist harsh under-vehicle heat
    • Universal fitment designed for Truck/SUV applications with a 2.25″ inlet
    • Iconic Original 40 Series chambered design — the classic Flowmaster muffler
  • Flowmaster 40 Series Chambered Muffler
    SKU: 8043041
    • Delivers the original aggressive Flowmaster sound, inside and out
    • Constructed of 16 gauge 409S stainless steel, fully MIG welded for maximum durability
    • 3.00″ inlet with a 9.50″ body width for versatile builds
    • Universal fitment ideal for Truck/SUV applications
    • High-temperature paint finish stands up to exhaust heat
    • Part of the proven Original 40 Series chambered muffler lineup
  • Exhaust Muffler
    SKU: 42542
    • Delivers the original Flowmaster sound with an aggressive interior and exterior tone
    • Built from 16 gauge aluminized steel and fully MIG welded for maximum durability
    • High-temperature paint finish stands up to real exhaust heat
    • Universal fitment with a 2.50″ inlet and compact 19.00″ length for flexible installs
    • Ideal building block for a street rod exhaust system or custom cat back setup
  • Flowmaster 40 Series Chambered Muffler
    SKU: 42442
    • Delivers the classic, aggressive Flowmaster tone inside and out — the Original 40 Series sound
    • 16 gauge aluminized steel, fully MIG welded for maximum durability
    • High-temperature paint finish built to withstand exhaust heat
    • Universal fitment with a 2.25″ inlet — ideal for street rod and custom builds
    • Proven chambered performance muffler design from the Original 40 Series
  • Exhaust Muffler
    SKU: 425404
    • Delivers the iconic aggressive Flowmaster tone inside and out
    • 16 gauge aluminized steel, fully MIG welded for maximum durability
    • High-temperature paint finish stands up to exhaust heat
    • Universal fitment with 2.50″ dual inlet and dual outlet for flexible builds
    • Ideal aggressive muffler for street rod and custom exhaust systems