This two chamber design incorporates Flowmaster's patented Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over Original 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
| Automotive Item Grade | High Performance |
| Body Height | 4.000 in. |
| Body Length | 13.000 in. |
| Body Width | 9.750 in. |
| Color | Black |
| Fitment | Universal |
| Inlet Connection Type | Pipe |
| Inlet Diameter | 2.500 in. |
| Inlet Inside Diameter | 2.500 in. |
| Inlet Outside Diameter | 2.500 in. |
| Inlet Position | Center |
| Inlet Type | Single Center |
| Main Piping Diameter | 2.500 in. |
| Material | Aluminized Steel |
| Mount Type | Uses New Hangers (Not Included) |
| Muffler Series | 40 Series Delta Flow |
| Muffler Type | Reflection |
| Outlet Connection Type | Pipe |
| Outlet Diameter | 2.500 in. |
| Outlet Outside Diameter | 2.500 in. |
| Outlet Position | Center |
| Outlet Type | Single Center Outlet |
| Overall Length | 19.000 in. |
| Shape | Oval |
| Sound Level | Aggressive |
| Tip Quantity | 0 |
| Title | Flowmaster 942540 40 Delta Flow Muffler - 2.50 Center In / 2.50 Center Out - Aggressive Sound |
| WARNING CA Proposition 65 | No |
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