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Borla Pro-XS 2.25in Tubing 14in x 4in x 9.5in Oval Offset/Offset Muffler

Marsoni M251S
Sale price$138.99
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Borla Pro-XS 2.25in Tubing 14in x 4in x 9.5in Oval Offset/Offset MufflerSKU: 40351 UPC: 808422903516 Borla ProXS Muffler 2. 25in Offset Inlet 2. 25in Offset Outlet 4in x 9. 5in Oval x 14in Long Body #40351 Universal The Borla 40351 ProXS muffler is a universal performance part designed for custom exhaust systems on street, off road, and racing vehicles. This 2. 25 inch offset inlet and outlet oval muffler with a 14 inch body length and 19 inch overall length installs easily in tight spaces. It provides noticeable gains in
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  • We offer a 30-day return/exchange service after receiving.
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4.0 ★★★★★
Based on 950 reviews
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John K.
Cuba, US
★★★★★ 4
Time will tell
Style: CA11053A
As another reviewer pointed out, the OEM paper filter is almost 3 times thicker than this one. All things equal, thicker would mean for filtering surface area. So with less filter media surface area, the filter would clog up quicker. However, since this is washable, maybe that's a moot point. I also noticed on my Hyundai Tucson, the rim of this filter must be slighter thicker because I had a tougher time clipping the filter box closed with this one installed. I am keeping my OEM for now, just in case.
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Reviewed in the United States on December 6, 2025
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Verified Purchase
Nasir A.RAHMAN
Natrona Heights, US
★★★★★ 5
PhilTop engine filter 1/2 the price of K&N filter No difference
Not much difference than K&N filter But 1/2 the price 100% identical
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Reviewed in the United States on April 17, 2026
J
Verified Purchase
Julie
Carnegie, US
★★★★★ 5
Perfect fit for my 2018 Civic—easy, affordable, and worth it
Size: 9.5" x 10.9" x 2.1"
I’ve bought this cabin air filter multiple times for my 2018 Honda Civic, and it’s consistently great quality. It fits perfectly and is super easy to install—takes just a few minutes to swap out, and I always do it myself. Way cheaper than going to a shop or dealership. The airflow is smooth, there’s no smell at all, and it keeps the inside of my car feeling clean and fresh. No weird odors, no dust blowing in—just a solid, dependable filter that does its job well. This is the only one I’ll keep buying.
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Reviewed in the United States on May 11, 2025
M
Verified Purchase
Michael Howard
Dallas, US
★★★★★ 5
Do it mayne
Size: 9.5" x 10.9" x 2.1"
Good quality and fit but find it funny that the instructions with the air flow are on the side. I assume that would be facing out and was annoyed when I tried to close and it didn’t fit. Probably should have read the directions. Still would recommend
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Reviewed in the United States on March 8, 2026
K
Verified Purchase
Kcfangue
Los Angeles, US
★★★★★ 5
Perfect fit, durable and affordable
Size: 9.5" x 10.9" x 2.1"
Ordered this for our 2023 Honda civic. Great fit, durable and very affordable. Was so easy to pull old one out and replace new one. Will be ordering again.
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Reviewed in the United States on November 3, 2025

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