Free Shipping on Auto Parts Orders Over $75.                           Order by 11 PM EST for Same Day Shipping!

Flowmaster 70 Series Big Block II Mufflers


Flowmaster
Flowmaster 70 Series Big Block II Mufflers

Product images may differ from actual product appearance.

70 Series Big Block II Mufflers combine Flowmaster's Delta Flow technology with a three-chamber design for maximum efficiency and performance. They offer quiet operation with improved sound.




Features
  • For truck, SUV, RV, towing, and high-performance street car applications
  • Mild to stock exterior sound level with mild interior resonance
  • Longer case for increased volume and reduced noise
  • Case: 22" L (5" Thick)
  • Overall: 28" L x 10" W
  • Aluminized 16-gauge steel or 409S stainless steel
  • Aluminized has 3-year warranty
  • Stainless has limited lifetime warranty
  • MIG welded for maximum durability


  • 11 Products

    Center In/Center Out

    Flowmaster 53070 - Flowmaster 70 Series Big Block II Mufflers
    389-53070
    70 Series Big Block II Muffler
  • Center In/Center Out: 3"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $156.70
    Ships

    Center In/Offset Out

    Flowmaster 52572 - Flowmaster 70 Series Big Block II Mufflers
    389-52572
    70 Series Big Block II Muffler
  • Center In/Offset Out: 2.5"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $156.70
    Ships
    Flowmaster 53072 - Flowmaster 70 Series Big Block II Mufflers
    389-53072
    70 Series Big Block II Muffler
  • Center In/Offset Out: 3"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $156.70
    Ships
    Flowmaster 853072 - Flowmaster 70 Series Big Block II Mufflers
    389-853072
    70 Series Big Block II Muffler
  • Center In/Offset Out: 3"
  • Stainless Steel
  • FREE
    SHIPPING
    & HANDLING!
    $161.57
    Ships

    Offset In/Center Out

    Flowmaster 52571 - Flowmaster 70 Series Big Block II Mufflers
    389-52571
    70 Series Big Block II Muffler
  • Offset In/Center Out: 2.5"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $156.70
    Ships
    Flowmaster 53071 - Flowmaster 70 Series Big Block II Mufflers
    389-53071
    70 Series Big Block II Muffler
  • Offset In/Center Out: 3"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $156.70
    Ships

    Offset In/Offset Out

    Flowmaster 52573 - Flowmaster 70 Series Big Block II Mufflers
    389-52573
    70 Series Big Block II Muffler
  • Offset In/Offset Out: 2.5"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $156.70
    Ships

    Center In/Dual Out

    Flowmaster 530722 - Flowmaster 70 Series Big Block II Mufflers
    389-530722
    70 Series Big Block II Muffler
  • Center In 3"/Dual Out 2.25"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $156.70
    Ships
    Flowmaster 530702 - Flowmaster 70 Series Big Block II Mufflers
    389-530702
    70 Series Big Block II Muffler
  • Center In 3"/Dual Out 2.5"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $156.70
    Order Today Ships 06/07/16

    Dual In/Center Out

    Flowmaster 524703 - Flowmaster 70 Series Big Block II Mufflers
    389-524703
    70 Series Big Block II Muffler
  • Dual In 2.25"/Center Out 3"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $156.70
    Ships

    Dual In/Dual Out

    Flowmaster 524704 - Flowmaster 70 Series Big Block II Mufflers
    389-524704
    70 Series Big Block II Muffler
  • Dual In/Dual Out: 2.25"
  • Aluminized Steel
  • FREE
    SHIPPING
    & HANDLING!
    $156.70
    Ships

    11 Products