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FLOWMASTER 50 SERIES BIG BLOCK MUFFLERS

Our largest and quietest muffler, the 50 Series Big Block Mufflers is made for tow vehicles, full-size trucks, large SUV’s and RV’s/Motor homes. More than just compatible with big cubic inch engine application, the 50 Series Big Block incorporates a very large Resonance Tuning Chamber to almost completely reduce interior sound in large cab vehicle and enough case volume to handle engines under heavy loads – perfect for tow vehicle. Significant improvements in mileage, torque, and horsepower are to be expected from this muffler, as well as decreased engine heat and wear.

  • The quietest Flowmaster we make!
  • Available in 16-gauge aluminized steel
  • Fully MIG-welded for maximum warranty
  • Greatly reduces interior sound and resonance

 

FM_50_Big_Block_Cutaway

 

 

 

50 Series Big Block Mufflers

IN/OUTC/CO/CC/OO/OO/O SAME SIDE
3.50"53553
IN/OUTD/CC/DD/DO/D
2.75"/2.50"527504
3.00"/2.50"530504
3.00"/3.50"530513