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Description
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
The 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 orientation and configuration you see fit. However, professional installation is highly recommended. Muffler 11378s weight-optimized 4x9x11in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 11378 is made of durable, corrosion resistant stainless steel and produced using cutting-edge CNC precision robotic manufacturing techniques, all backed by MagnaFlow's limited lifetime construction warranty.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
truck bed net
It fits perfectly, just what I expected, good quality and it does the job
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Reviewed in the United States on February 9, 2026
★★★★★ 5
Nice phone holder
This is a great product. I bought a car that had the base installed so I bought one to be able to use it. Holds great!
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Reviewed in the United States on August 2, 2025
★★★★★ 1
Use locktight red or blue
Product comes loose frequently and its extremely annoying to tighten it takes forever
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Reviewed in the United States on November 4, 2025
★★★★★ 2
Metal tab blocks magnetic charging
The set screws are too small and they do not have an adapter that fits the magnet charging rings on the newer phones
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Reviewed in the United States on October 4, 2025
★★★★★ 5
My favorite BMW car mount.
This is my favorite mount for BMWs. I have them on two cars (X4M and a 328), but I always modify the mount and install a metal ball (purchased here on Amazon) so I can mount an ESR Wireless charger.
This combo is the best charging mount and system I have ever tried
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Reviewed in the United States on November 17, 2023