


MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
MagnaFlow Muffler Mag SS 11X4X9 2.25 D/DThe MagnaFlow 4 X 9in. Oval Straight Through Performance Exhaust Muffler 11378 is engineered to enhance your ride with a healthy helping of our signature exhaust sound and dyno proven performance thanks to its free flowing straight through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill. The reversible, universal 2. 25 2. 25in. diameter inlet outlet Straight Through layout allows you to install it in whatever
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Your MagnaFlow Muffler Mag SS 11X4X9 2.25 D/D orders ship within 1-2 business days.
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- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.4 ★★★★★
Based on 1359 reviews
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Product Reviews
★★★★★ 5
Cheap and does the job
Size: 6 Feet
Seems to be well constructed, it’s a little thinner than I expected, but it passes bass just fine to my SVS PB 2000 Pro.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
★★★★★ 5
Highly recommend
Size: 21.6Inch Light Bar
Easy install and damn its bright. Makes nighttime seem like daytime
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Reviewed in the United States on January 30, 2026
★★★★★ 5
Very bright
Size: 13.5Inch Light Bar
Very bright
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Reviewed in the United States on November 29, 2025
★★★★★ 5
Great value for high quality lights
Size: 2Pcs 7.6Inch Light Bar
These are really nice lights. Night and day difference between these and the cheap Nilights. They should really try to differentiate these in their listings.
Nice consistent beam pattern and color. High quality build. Power output close to claimed rating.
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Reviewed in the United States on February 9, 2026
★★★★★ 5
fulfills purpose
Size: 21.6Inch Light Bar
works great
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Reviewed in the United States on February 2, 2026
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