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FLOWMASTER 40 SERIES DELTA FLOW MUFFLERS

Flowmaster’s Delta Flow 40 Series two chamber design incorporates Flowmaster’s patented Delta Flow technology. The “Delta” deflectors generate increased scavenging for better performance and reduced interior sound. Perfect for vehicles where an aggressive exterior tone is desired with reduced interior tone.

  • The quietest muffler option in our 40 Series two-chambered line
  • Reduced resonance over 40 series mufflers
  • Stainless steel 409S version backened by lifetime warranty
  • Features advanced two-chamber design & Delta Flow technology
  • Available in aluminized steel or 409S Stainless for harsh weather
  • Both styles are fully MIG-welded for maximum durability

 

FM_40_Series_Cutaway

 

 

40 Series Delta Muffler Table

IN/OUTC/CO/CC/OO/OO/O SAME SIDE
2.00"942040942041942042942043
2.25"942440942441942442942443942444
2.50"942540942541942542942543942544
3.00"943040943041943042943043
409S Stainless Steel Models
2.25"842443
2.50"842541842543
3.00"843041
IN/OUTD/CC/DD/DO/D
2.00"/2.00"9420402
2.25"/2.00"9424412
2.25"/2.25"9424422
2.50"/2.00"94254029425412
2.50"/2.25"94254229425432
2.50"/2.50"9425400
3.00"/2.25"9430422
3.00"/2.50"94304029430412
409S Stainless Steel Models
3.00"/2.25"
3.00"/2.50"8430402