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Magnaflow B6 Audi S4 Catback Exhaust System

Marsoni M251S
Sale price$823.00
Pay 4 payments of $205.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Magnaflow B6 Audi S4 Catback Exhaust System*CURRENTLY ON BACKORDER THROUGH MAGNAFLOW* Made in the USA and engineered to last, for those seeking increased performance and better economy, MagnaFlow Street Series Performance Exhaust systems deliver the smooth deep sound you want and the wide open performance power you need. Our exhaust systems feature straight through flow designs for the ultimate in unrestricted horsepower and torque for big power while maintaining exhaust efficiency. These
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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.
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4.6 ★★★★★
Based on 719 reviews
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Product Reviews
K
Verified Purchase
K. L. Bauer
Waukegan, US
★★★★★ 5
Great bags for Eufy at a reasonable price!
Size: C10 / C20 Bags
Fits my Eufy vacuum as well as the original bag. Such a nice find, a good bargain, not cheaply made either- we are on our 3rd bag from this package and they’re holding up fine just like the original manufacturer bags.
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Reviewed in the United States on January 21, 2026
J
Verified Purchase
Juan F.
San Leandro, US
★★★★★ 5
Muy bueno
Tal como se describe
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Reviewed in the United States on May 3, 2026
A
Verified Purchase
Ahmad
Charlottesville, US
★★★★★ 1
Incorrect filter size despite listed compatibility
I bought this kit specifically because the listing clearly states that it is compatible with my Xiaomi robot vacuum. Before purchasing, I double-checked all the specifications. However, when the product arrived, I discovered that the internal filter is smaller than the original one and does not fit correctly. This makes the filter unusable for my vacuum. The seller should update the compatibility information because it is misleading for buyers.
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Reviewed in the United States on April 9, 2026
R
Verified Purchase
Robert Hood
Bozeman, US
★★★★★ 5
Great quality dust bags – perfect fit for my eufy robot vacuum!
Size: C10 / C20 Bags
These dust bags are exactly what I needed for my eufy Omni C20! They fit perfectly, install easily, and the 3-layer design really does help control dust and odors. The large 3.6L capacity means I don’t have to change them too often, even with daily vacuuming. Great value for the price, and the quality feels just as good as the original eufy bags.
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Reviewed in the United States on September 15, 2025
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Verified Purchase
Petey B.
Fort Morgan, US
★★★★★ 5
Works well
Size: C10 / C20 Bags
These bags are great!!
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Reviewed in the United States on March 23, 2026

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