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
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
| Part Number | IN/OUT | Configuration | Sound | Material |
|---|---|---|---|---|
| FLO942440 | 2.25/2.25 | Center/Center | Aggressive | Aluminized Steel |
| FLO942441 | 2.25/2.25 | Offset/Center | Aggressive | Aluminized Steel |
| FLO942442 | 2.25/2.25 | Center/Offset | Aggressive | Aluminized Steel |
| FLO942443 | 2.25/2.25 | Offset/Offset | Aggressive | Aluminized Steel |
| FLO942444 | 2.25/2.25 | Offset/Offset Same Side | Aggressive | Aluminized Steel |
| FLO9424422 | 2.25/2.25 | Center/Dual | Aggressive | Aluminized Steel |
| FLO942540 | 2.50/2.50 | Center/Center | Aggressive | Aluminized Steel |
| FLO942541 | 2.50/2.50 | Offset/Center | Aggressive | Aluminized Steel |
| FLO942542 | 2.50/2.50 | Center/Offset | Aggressive | Aluminized Steel |
| FLO942543 | 2.50/2.50 | Offset/Offset | Aggressive | Aluminized Steel |
| FLO942544 | 2.50/2.50 | Offset/Offset Same Side | Aggressive | Aluminized Steel |
| FLO9425400 | 2.50/2.50 | Center/Dual | Aggressive | Aluminized Steel |
| FLO943040 | 3.00/3.00 | Center/Center | Aggressive | Aluminized Steel |
| FLO943041 | 3.00/3.00 | Offset/Center | Aggressive | Aluminized Steel |
| FLO943042 | 3.00/3.00 | Center/Offset | Aggressive | Aluminized Steel |
| FLO943043 | 3.00/3.00 | Offset/Offset | Aggressive | Aluminized Steel |
| FLO9425422 | 2.50/2.25 | Center/Dual | Aggressive | Aluminized Steel |
| FLO9425432 | 2.50/2.25 | Offset/Dual | Aggressive | Aluminized Steel |
| FLO9430402 | 3.00/2.50 | Center/Dual | Aggressive | Aluminized Steel |
| FLO9430412 | 3.00/2.50 | Offset/Dual | Aggressive | Aluminized Steel |
| FLO9430422 | 3.00/2.25 | Center/Dual | Aggressive | Aluminized Steel |
| FLO942040 | 2.00/2.00 | Center/Center | Aggressive | Aluminized Steel |
| FLO942041 | 2.00/2.00 | Offset/Center | Aggressive | Aluminized Steel |
| FLO942042 | 2.00/2.00 | Center/Offset | Aggressive | Aluminized Steel |
| FLO942043 | 2.00/2.00 | Offset/Offset | Aggressive | Aluminized Steel |
| FLO842541 | 2.50/2.50 | Offset/Center | Aggressive | Stainless Steel |
| FLO842543 | 2.50/2.50 | Offset/Offset | Aggressive | Stainless Steel |
| FLO843041 | 3.00/3.00 | Offset/Center | Aggressive | Stainless Steel |
| FLO8430402 | 3.00/2.50 | Center/Dual | Aggressive | Stainless Steel |
