★★★★★ 5
Perfect fit
Size: 1-Pack
Perfect fit, easy install
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Reviewed in the United States on May 20, 2026
Borla Universal Pro-XS Muffler Oval 3in Inlet/Outlet Offset/Offset Notched Muffler
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Borla Universal Pro-XS Muffler Oval 3in Inlet/Outlet Offset/Offset Notched MufflerSKU: 400491 UPC: 808422004916 Borla 400491 ProXS Muffler 3in Offset Inlet 3in Offset Outlet 4x9. 5 Oval 14in Body Notched Necks Universal The Borla 400491 ProXS muffler is a universal oval performance muffler designed for custom exhaust systems on trucks, cars and SUVs with 3 inch piping. This reversible notched design clamps on easily to boost horsepower, torque and fuel efficiency while producing the signature Borla Sound of Power. Add motorsport
Quick Dispatch:
Your Borla Universal Pro-XS Muffler Oval 3in Inlet/Outlet Offset/Offset Notched 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
Order Tracking:
You'll receive a tracking link by email once your Borla Universal Pro-XS Muffler Oval 3in Inlet/Outlet Offset/Offset Notched Muffler ships.
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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
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4.3 ★★★★★
Based on 554 reviews
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Product Reviews
★★★★★ 5
Happy with purchase
Great fit, seems good quality, would buy again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
★★★★★ 5
It is an air filter
Fit perfect easy replacement and saves $$$.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Perfect fit for 2020 Subaru Outback
Fit my 2020 Subaru Outback perfectly. 5-minute install. Works great. My previous cabin filter was scary to see.
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Reviewed in the United States on December 16, 2025
★★★★★ 5
Good, inexpensive replacement filter
I've used these filters for a couple years (four replacements) on my Subaru Crosstrek, and they seem to do the job well, probably as well as the original. I generally remove and clean them every three months, and replace them every six.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
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