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#378125184
Flowmaster 12518409 Hushpower II 409 Muffler 2.5 Inch ID, 18 Inch Case
- Measures 24" overall with a 18" long case
- Muffler has T-409 Stainless Steel internals
- It redirects sound energy back into itself without losing flow
$179.95
/each
On Backorder
$199.95
Save $20.00
This part is Backordered. We estimate this item will ship on or before June 26th.
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Product Summary
Universal Fit, 2.5" Inlet Diameter, 5.63" Overall Width
- Measures 24" overall with a 18" long case
- Muffler has T-409 Stainless Steel internals
- It redirects sound energy back into itself without losing flow
- The thermal barrier allows muffler to be placed closer to heat sensitive areas
- The Cool Shell technology gives you a great sound and also helps control heat transfer to your floor pan
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Flowmaster 12518409 Details
These Hushpower II mufflers are made of durable T-409 stainless steel and are the perfect match for any street application up to 400 horsepower. Their Cool Shell technology gives you a great sound and also helps control heat transfer to your floor pan.
Measures 5-1/2" wide and 4" thick.
- T-409 Stainless Steel internals
- Redirects sound energy back into itself without losing flow
- Thermal barrier allows muffer to be placed closer to heat sensitive areas
Item Details
Plain T-409 Stainless Steel
24" Overall length w/ 18" long case.
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Holley Performance Icons 10% Off Select Parts Sale
Holley Performance Icons 10% Off Select Parts Sale 2026 running from June 1, 2026, through June 21, 2026. For a limited time, customers can save 10% off on select Holley Performance parts, making it the perfect opportunity to upgrade your vehicle with high-quality components. Sale prices apply to purchases made during the sale period only.
Guides & Documents
Flowmaster 12518409 Specifications
Flowmaster 12518409 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 12518409 |
| Brand | Flowmaster |
| Inlet Diameter | 2.5" |
| Outlet Diameter | 2.5" |
| GENERAL | |
| Overall Length | 24.00" |
| Overall Width | 5.63" |
| Body Length | 18.00" |
| Overall Thickness | 4" |
| Material Type | Stainless Steel |
| Finish | Black |
| Exhaust Tip Included | No |
| Case Shape | Oval |
| Inlet Location | Center |
| Outlet Location | Center |
| Outlet Quantity | One |
| Inlet Quantity | One |
| GTIN Code | 700042030248 |
| Sold in Quantity | Each |
Ratings & Reviews
5
2 Reviews
Customers consistently praise this muffler for its superb construction and practical features such as its compact design and easy-to-install nature. Many admire its perfect tone quality. Users notably prefer this product over others, attributing this to its confirmed qualities and impressive performance. Their positive feedback emphasizes the muffler's high-quality materials and exceptional safety features.
Ratings & Reviews
5
2 Reviews
Customers consistently praise this muffler for its superb construction and practical features such as its compact design and easy-to-install nature. Many admire its perfect tone quality. Users notably prefer this product over others, attributing this to its confirmed qualities and impressive performance. Their positive feedback emphasizes the muffler's high-quality materials and exceptional safety features.
5
2 reviews
5
2
4
0
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Definitely a well made muffler
5.0
8 months ago
Larry
Central Oregon
Verified
Very compact. Easy to install.
Would Recommend
Perfect tone!
5.0
16 years ago
Montana Dodge Boys
Montana
Love these mufflers!
Would Recommend
Showing 2 of 2 reviews