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(888) 312-8812 Login SignupThe Flowmaster Super HP-2 Muffler is designed for builders looking to reduce exhaust noise without sacrificing performance in compact or custom setups. With a 2.5-inch center inlet/outlet configuration and a compact square case, this muffler is ideal for applications with tight space constraints—such as classic cars, street rods, or low-profile trucks. Order the Flowmaster 12512409 today.
| Body Height | 4.000 in. |
| Body Length | 12.000 in. |
| Body Width | 5.000 in. |
| 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 | OEM |
| Material | Stainless Steel |
| Muffler Series | HP-2 Series |
| Outlet Diameter | 2.500 in. |
| Outlet Outside Diameter | 2.500 in. |
| Outlet Position | Center |
| Outlet Type | Single Center Outlet |
| Overall Length | 12.000 in. |
| Shape | Oval |
| Sound Level | Aggressive |
| Tip Quantity | 0 |
| Title | Flowmaster 12512409 Super HP-2 Muffler 409S - 2.50 Center In./ 2.50 Center Out - Aggressive Sound |
| Country of Origin (Primary) | CN |
| Canadian Harmonizing Tariff Code | 8708925000 |
| Harmonized Tariff Code (Schedule B) | 8708925000 |
| Harmonized Tariff Code (HTS) | 8708925000 |
| MSDS Sheet Number | N |
| NAFTA Preference Criterion Code | B |
| Refurbished Part | N |
| Remanufactured Part | N |
| Stock Status | S |
| Warranty Special | Limited Lifetime |
| Warranty Special UOM | LF |
| UPC | 00700042030194 |
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