


Borla Universal 4in x 9-1/2in x 14in Oval Center/Offset 3in Inlet/Outlet ProXS Muffler
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Borla Universal 4in x 9-1/2in x 14in Oval Center/Offset 3in Inlet/Outlet ProXS MufflerSKU: 40359 UPC: 808422403597 Borla 40359 ProXS Muffler Universal 4in x 9. 5in x 14in Oval, 3in Center Offset Reversible Inlet Outlet The Borla 40359 ProXS Muffler delivers performance exhaust upgrades for custom applications on cars, trucks, and SUVs. Its 4in high x 9. 5in wide x 14in long oval body with 19in overall length and reversible 3in center inlet offset outlet fits 3in piping setups easily. Expect power and torque increases, better fuel
Quick Dispatch:
Your Borla Universal 4in x 9-1/2in x 14in Oval Center/Offset 3in Inlet/Outlet ProXS Muffler orders ship within 1-2 business days.
Delivery Options:
- 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.
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4.0 ★★★★★
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Product Reviews
★★★★★ 5
Awesome shoes!
Size: 4 Big Kid, Color: Aqua/Multi
My daughter is SUPER picky about shoes and loves these. They are easy and quick to put on, run true to size, and most important COMFORTABLE. She is outgrowing them and will have to get her the next size up. Highly recommend for picky kids
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Reviewed in the United States on December 4, 2025
★★★★★ 5
LOVE THESE
Size: 3 Little Kid, Color: Hot Pink/Multi
Really nice. Pix don’t do them justice.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Great for busy feet
Size: 13 Little Kid, Color: Hot Pink/Multi, Size: 13 Little Kid, Color: Hot Pink/Multi
My five-year-old daughter loves these Skechers slip-ins—and she is not easy on her shoes! You can see in the photo, she’s already put plenty of miles on them. They’ve been through the washing machine at least twice and still look great—the bright colors are a big hit with her and they hold up well in the wash.
One of the elastic bands on top did come loose, but I was able to fix it quickly with a dab of superglue. She slips them on and off all by herself, which is perfect as we’re still learning to tie laces. All in all, a great purchase for the price—especially since kids grow so fast and put their shoes through a lot!
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Reviewed in the United States on May 24, 2025
★★★★★ 5
Cute slip-ons - so easy and quick!
Size: 13 Little Kid, Color: Hot Pink/Multi
These shoes are adorable, comfortable according to my kid, and super easy to pull on!
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Reviewed in the United States on January 17, 2026
★★★★★ 5
Durable
Size: 6 Big Kid, Color: Aqua/Multi
Good shoes. True to size
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Reviewed in the United States on February 18, 2026