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Valvetronic Audi B8 / B8.5 S4 / S5 Valved Sport Exhaust System

Marsoni M251S
Sale price$1209.45
Pay 4 payments of $302.36 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Valvetronic Audi B8 / B8.5 S4 / S5 Valved Sport Exhaust SystemWelcome to a revelation in supercharged V6 sound. Our new valved setup for the B8 B8. 5 platform delivers incredible sound throughout all rev ranges and allows for the ultimate flexibility. Constructed of T304 Stainless Steel, this system runs 2. 5 inches all the way back to the tips. Utilizing our high pitch x pipe technology this system delivers a high pitch wail unfamiliar to the platform before. Low end rawness combined with the high pitch tone
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Your Valvetronic Audi B8 / B8.5 S4 / S5 Valved Sport Exhaust System orders ship within 1-2 business days.

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  • Standard: 3-7 business days
  • 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]
  • Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 548 reviews
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Verified Purchase
Brian
Phoenix, US
★★★★★ 5
Higher quality than OEM Honda.
Size: 8.8" x 9.3" x 1.2"
I highly recommend this filter! This filter I had fast shipping and is easily installed. Side by side comparison with OEM Honda filter was amazing. I’ll definitely reorder this filter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
K
Verified Purchase
Kelley
Louisville, US
★★★★★ 5
Works great
Size: 8.8" x 9.3" x 1.2"
This fit perfectly in my 2017 Acura MDX. I can change my own filter in less than 5 minutes and it costs much less than the OEM. The filters lasted me about a year before I needed a new one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
P
Verified Purchase
Plis
Charlottesville, US
★★★★★ 4
Encaja perfecto
Size: 8.8" x 9.3" x 1.2"
Trabajo muy bien
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Reviewed in the United States on March 24, 2026
M
Verified Purchase
Mathew
Birmingham, US
★★★★★ 5
Great product !!!
Size: 8.8" x 9.3" x 1.2"
The product was in great shape when delivered. Even though the package was thin as it is the delivery was made with card and all was well with product. The instructions were good to use and change in my car. Also it showed the make of vehicle so I won’t be confused at all. Overall it was a great buy
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Reviewed in the United States on May 13, 2026
A
Verified Purchase
Amazon Customer
Waukegan, US
★★★★★ 5
Fits my Accord perfectly!
Size: 8.8" x 9.3" x 1.2"
Fits my 2008 Accord perfectly and feels just as sturdy as the OEM I used before, which cost nearly twice as much. Plus, it includes activated carbon, something the OEM didn’t have.
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Reviewed in the United States on May 15, 2026

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