• The Flowmaster 50 Series Big Block Muffler cranks-out extra power and torque for powerful trucks, SUVs and RVs—especially when towing
  • Sounds a more mild version of the famous Flowmaster tone for revealing your engine power without waking the neighbors
  • The Flowmaster 50 Series Big Block drops under-hood temperatures as much as 200°, extending the life of vital engine components
  • Unique H-chamber design reduces interior resonance for a smooth, calm ride inside your cab
  • Large chamber capacity handles your engine's power under heavy loads
  • The 50 Series Big Block muffler also offers a critical increase in gas mileage
  • Quality Flowmaster muffler crafting uses aluminized steel for corrosion resistance and precise mig welds for maximum durability
  • Your Flowmaster 50 Series Big Block Muffler boasts a 3-year warranty

 
50 Series Big Block Race Mufflers
50 Series Big Block Race Mufflers
From: $160.22
 
Part NoApplication
527504Flowmaster Inlet/Outlet: 2.75" IN (D) / 2.50" OUT (D) 50 Series Big Block Race Mufflers
530513Flowmaster Inlet/Outlet: 3.00" DUAL IN / 3.50" Offset OUT 50 Series Big Block Race Mufflers
530602Flowmaster Inlet/Outlet: 3.00" IN (C) / 2.25" OUT (D): ea 50 Series Big Block Race Mufflers
530502Flowmaster Inlet/Outlet: 3.00" IN (C) / 2.50" OUT (D): ea 50 Series Big Block Race Mufflers
53050Flowmaster Inlet/Outlet: 3.00" IN (C) / OUT (C): ea 50 Series Big Block Race Mufflers
53052Flowmaster Inlet/Outlet: 3.00" IN (C) / OUT (O): ea 50 Series Big Block Race Mufflers
530504Flowmaster Inlet/Outlet: 3.00" IN (D) / 2.50" OUT (D) 50 Series Big Block Race Mufflers
53051Flowmaster Inlet/Outlet: 3.00" IN (O) / OUT (C): ea 50 Series Big Block Race Mufflers
53053Flowmaster Inlet/Outlet: 3.00" IN (O) / OUT (O), Opposite Side Offsets: ea 50 Series Big Block Race Mufflers
53054Flowmaster Inlet/Outlet: 3.00" IN (O) / OUT (O), Same Side Offsets: ea 50 Series Big Block Race Mufflers
53550Flowmaster Inlet/Outlet: 3.50" IN (C) / OUT (C): ea 50 Series Big Block Race Mufflers
53552Flowmaster Inlet/Outlet: 3.50" IN (C) / OUT (O): ea 50 Series Big Block Race Mufflers
53551Flowmaster Inlet/Outlet: 3.50" IN (O) / OUT (C): ea 50 Series Big Block Race Mufflers
53553Flowmaster Inlet/Outlet: 3.50" IN (O) / OUT (O), Opposite Side Offsets: ea 50 Series Big Block Race Mufflers