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Flowmaster 40 Series Delta Flow Mufflers


Flowmaster
Flowmaster 40 Series Delta Flow Mufflers

Product images may differ from actual product appearance.

The two-chamber design of these mufflers incorporates Flowmaster's patented Delta Flow technology. Delta deflectors result in increased scavenging for better performance and reduced interior resonance over standard 40 Series Mufflers.


Features
  • For 4-cylinder and 6-cylinder applications with limited space
  • The quietest muffler of the dual chamber 40 Series plus reduced interior resonance
  • Case: 13" L (4" Thick)
  • Overall: 19" L x 9.75" W
  • Aluminized steel or 409S stainless steel (stainless has limited lifetime warranty)
  • MIG welded for maximum durability


  • 29 Products

    Center In/Center Out

    Flowmaster 942040 - Flowmaster 40 Series Delta Flow Mufflers
    389-942040
    40 Delta Flow Muffler
  • Center In/Center Out: 2"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 942440 - Flowmaster 40 Series Delta Flow Mufflers
    389-942440
    40 Delta Flow Muffler
  • Center In/Center Out: 2.25"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 942540 - Flowmaster 40 Series Delta Flow Mufflers
    389-942540
    40 Delta Flow Muffler
  • Center In/Center Out: 2.5"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 943040 - Flowmaster 40 Series Delta Flow Mufflers
    389-943040
    40 Delta Flow Muffler
  • Center In/Center Out: 3"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships

    Center In/Offset Out

    Flowmaster 942042 - Flowmaster 40 Series Delta Flow Mufflers
    389-942042
    40 Delta Flow Muffler
  • Center In/Offset Out: 2"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 942442 - Flowmaster 40 Series Delta Flow Mufflers
    389-942442
    40 Delta Flow Muffler
  • Center In/Offset Out: 2.25"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 942542 - Flowmaster 40 Series Delta Flow Mufflers
    389-942542
    40 Delta Flow Muffler
  • Center In/Offset Out: 2.5"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 943042 - Flowmaster 40 Series Delta Flow Mufflers
    389-943042
    40 Delta Flow Muffler
  • Center In/Offset Out: 3"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships

    Offset In/Center Out

    Flowmaster 942041 - Flowmaster 40 Series Delta Flow Mufflers
    389-942041
    40 Delta Flow Muffler
  • Offset In/Center Out: 2"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 942441 - Flowmaster 40 Series Delta Flow Mufflers
    389-942441
    40 Delta Flow Muffler
  • Offset In/Center Out: 2.25"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 942541 - Flowmaster 40 Series Delta Flow Mufflers
    389-942541
    40 Delta Flow Muffler
  • Offset In/Center Out: 2.5"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 842541 - Flowmaster 40 Series Delta Flow Mufflers
    389-842541
    40 Delta Flow Muffler
  • Offset In/Center Out: 2.5"
  • Stainless Steel
  • FREE
    SHIPPING
    & HANDLING!
    $111.31
    Ships
    Flowmaster 943041 - Flowmaster 40 Series Delta Flow Mufflers
    389-943041
    40 Delta Flow Muffler
  • Offset In/Center Out: 3"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 843041 - Flowmaster 40 Series Delta Flow Mufflers
    389-843041
    40 Delta Flow Muffler
  • Offset In/Center Out: 3"
  • Stainless Steel
  • FREE
    SHIPPING
    & HANDLING!
    $111.31
    Ships

    Offset In/Offset Out

    Flowmaster 942043 - Flowmaster 40 Series Delta Flow Mufflers
    389-942043
    40 Delta Flow Muffler
  • Offset In/Offset Out: 2"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 942443 - Flowmaster 40 Series Delta Flow Mufflers
    389-942443
    40 Delta Flow Muffler
  • Offset In/Offset Out: 2.25"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 942543 - Flowmaster 40 Series Delta Flow Mufflers
    389-942543
    40 Delta Flow Muffler
  • Offset In/Offset Out: 2.5"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 842543 - Flowmaster 40 Series Delta Flow Mufflers
    389-842543
    40 Delta Flow Muffler
  • Offset In/Offset Out: 2.5"
  • Stainless Steel
  • FREE
    SHIPPING
    & HANDLING!
    $111.31
    Ships
    Flowmaster 943043 - Flowmaster 40 Series Delta Flow Mufflers
    389-943043
    40 Delta Flow Muffler
  • Offset In/Offset Out: 3"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships

    Offset In/Offset Out (Same Side)

    Flowmaster 942444 - Flowmaster 40 Series Delta Flow Mufflers
    389-942444
    40 Delta Flow Muffler
  • Same Side Offset In/Out: 2.25"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 942544 - Flowmaster 40 Series Delta Flow Mufflers
    389-942544
    40 Delta Flow Muffler
  • Same Side Offset In/Out: 2.5"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships

    Offset In/Dual Out

    Flowmaster 9425432 - Flowmaster 40 Series Delta Flow Mufflers
    389-9425432
    40 Delta Flow Muffler
  • Offset In 2.5"/Dual Out 2.25"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 9430412 - Flowmaster 40 Series Delta Flow Mufflers
    389-9430412
    40 Delta Flow Muffler
  • Offset In 3"/Dual Out 2.5"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships

    Center In/Dual Out

    Flowmaster 9424422 - Flowmaster 40 Series Delta Flow Mufflers
    389-9424422
    40 Delta Flow Muffler
  • Center In/Dual Out: 2.25"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 9425422 - Flowmaster 40 Series Delta Flow Mufflers
    389-9425422
    40 Delta Flow Muffler
  • Center In 2.5"/Dual Out 2.25"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 9425400 - Flowmaster 40 Series Delta Flow Mufflers
    389-9425400
    40 Delta Flow Muffler
  • Center In/Dual Out: 2.5"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 9430422 - Flowmaster 40 Series Delta Flow Mufflers
    389-9430422
    40 Delta Flow Muffler
  • Center In 3"/Dual Out 2.25"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 9430402 - Flowmaster 40 Series Delta Flow Mufflers
    389-9430402
    40 Delta Flow Muffler
  • Center In 3"/Dual Out 2.5"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $97.26
    Ships
    Flowmaster 8430402 - Flowmaster 40 Series Delta Flow Mufflers
    389-8430402
    40 Delta Flow Muffler
  • Center In 3"/Dual Out 2.5"
  • Stainless Steel
  • FREE
    SHIPPING
    & HANDLING!
    $111.31
    Ships

    29 Products