50 Series Delta Flow Mufflers
50 Series Delta Flow Mufflers
Flowmaster® 50 SERIES DELTA FLOW mufflers are designed to reduce interior sound and resonance, the 50 Series Delta Flow’s moderate exterior tone level is the result our advanced technology. This compact exterior case size muffler was especially designed for passenger cars rather than trucks or SUV’s. Featuring our unique Resonance Tuning Chamber, the 3-chamber 50 Series Delta Flow gives the same performance as the two chambered Flowmaster mufflers and delivers increased engine efficiency for better power and mileage.

Moderate tone – perfect for performance and passenger cars
409S Stainless Steel version backed by lifetime warranty
Features advanced three-chamber design
Delta Flow internal technology
Available in aluminized steel or 409S Stainless Steel
Both styles are fully MIG-welded for maximum durability


50 Series Delta Flow MufflersTable
Part Number IN/OUT Configuration Sound Material
FLO9424502.25/2.25Center/CenterModerateAluminized Steel
FLO9424512.25/2.25Offset/CenterModerateAluminized Steel
FLO9424522.25/2.25Center/OffsetModerateAluminized Steel
FLO9424532.25/2.25Offset/OffsetModerateAluminized Steel
FLO9425502.50/2.50Center/CenterModerateAluminized Steel
FLO9425512.50/2.50Offset/CenterModerateAluminized Steel
FLO9425522.50/2.50Center/OffsetModerateAluminized Steel
FLO9425532.50/2.50Offset/OffsetModerateAluminized Steel
FLO425501-L2.50/2.50Offset/OffsetModerateAluminized Steel
FLO9430503.00/3.00Center/CenterModerateAluminized Steel
FLO9430513.00/3.00Offset/CenterModerateAluminized Steel
FLO9430523.00/3.00Center/OffsetModerateAluminized Steel
FLO9430533.00/3.00Offset/OffsetModerateAluminized Steel
FLO94305023.00/2.50Center/DualModerateAluminized Steel
FLO94305123.00/2.50Offset/DualModerateAluminized Steel
FLO94305223.00/2.25Center/DualModerateAluminized Steel
FLO9420512.00/2.00Offset/CenterModerateAluminized Steel
FLO94255022.50/2.00Center/DualModerateAluminized Steel
FLO8424512.25/2.25Offset/CenterModerateStainless Steel
FLO8424522.25/2.25Center/OffsetModerateStainless Steel
FLO8424532.25/2.25Offset/OffsetModerateStainless Steel
FLO8425512.50/2.50Offset/CenterModerateStainless Steel
FLO8425532.50/2.50Offset/OffsetModerateStainless Steel
FLO8430513.00/3.00Offset/CenterModerateStainless Steel
FLO84305023.00/2.50Center/DualModerateStainless Steel
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