Description
Performance Muffler Solution. The Flowmaster Super HP-2 18-Inch Center/Center Oval Muffler; 2-Inch Inlet/2-Inch Outlet; 409 Stainless delivers optimized exhaust flow for balanced sound control with moderate sound levels and enhanced vehicle performance. Designed primarily for street use, this muffler is a versatile option suitable for various vehicle applications.
Construction and Appearance. Crafted from durable 409 stainless steel, this muffler features a compact oval body coated with high-temperature black paint for corrosion resistance and a sleek finish. The laminar flow technology inside promotes efficient exhaust flow and maintains the signature Flowmaster sound quality.
Installation. Installation utilizes slip-fit inlet and outlet connections compatible with clamp-on or weld-on methods, allowing for straightforward mounting. Some adaptation may be needed due to its universal fitment, but no complex modifications are generally required.
Warranty. This muffler is backed by a lifetime limited warranty, providing confidence in durability and long-term performance. Application. Suitable for a wide range of 4- and 6-cylinder engines, classic and late model muscle cars, street rods, street/strip vehicles, and trucks or SUVs; the universal fitment may require some adaptation for specific installations.
Flowmaster 12018409
CA Residents: WARNING: Cancer and Reproductive Harm
- Body Height 4.00 In
- Body Length 18.00 In
- Body Material 409 Stainless Steel
- Body Width 5.00 In
- California Proposition 65 Yes
- Category Exhaust
- Clamps Included No
- Color Black
- Emission Code 5
- Exhaust Tip Quantity 0
- Finish High-Temperature Paint
- Fitment Universal; Some Adaptation May Be Required
- Grade Type Performance
- Hanger Included No
- Heat Shield Attached No
- Inlet Connection Slip-Fit
- Inlet Diameter 2.00 In
- Inlet Inside Diameter 2.00 In
- Inlet Location Center
- Inlet Outside Diameter 2.13 In
- Inlet Quantity 1
- Inlet Type Clamp-On
- Inlet Type Weld-On
- Muffler Series HP-2 Series
- Muffler Type Laminar Flow
- Outlet Connection Slip-Fit
- Outlet Inside Diameter 2.00 In
- Outlet Location Center
- Outlet Outside Diameter 2.13 In
- Outlet Quantity 1
- Outlet Type Single
- Overall Length 24.00 In
- Part Type Exhaust Muffler
- Product Type Street Mufflers
- Reversible No
- Shape Oval
- Sound Level Moderate
- Tunable No
- Vehicle Type 4/6 Cyl Engine
- Vehicle Type Classic Muscle Car
- Vehicle Type Late Model Muscle Car
- Vehicle Type Street Rod
- Vehicle Type Street/Strip
- Vehicle Type Truck/SUV
| Brand | Flowmaster |
| Muffler Inlet Size | 2.00 Inch |
| Muffler Installation Type | Clamp-On Muffler |
| Muffler Type | Chambered Muffler |






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