Borla 3in Inlet/Dual 2.25in Outlet Center/Dual Oval ProXS Muffler

Borla 3in Inlet/Dual 2.25in Outlet Center/Dual Oval ProXS Muffler

Marsoni

M251S

$187.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Borla 3in Inlet/Dual 2.25in Outlet Center/Dual Oval ProXS MufflerSKU: 40670 UPC: 808422406703 Borla 40670 ProXS Muffler 3in Center Inlet Dual 2. 25in Outlets 4x9. 5in Oval 19in Body Universal The Borla 40670 ProXS Muffler delivers aggressive exhaust tone with power gains for trucks cars SUVs in custom systems. This universal oval muffler fits 3in piping via center inlet and dual 2. 25in rear outlets or reverses for dual inlet single outlet setups. Gain torque fuel economy and Borla Sound of Power in any performance

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Fast: 2-3 business days
Express: 1-2 business days

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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

Verified Purchase

Michael Howard

Birmingham, 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

Verified Purchase

Kcfangue

Boise, 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

Verified Purchase

NY2CO

Draper, US

★★★★★ 5

Save money by installing yourself

Size: 9.5" x 10.9" x 2.1"

Good price and easy to install in a 2019 Honda CRV. Instructions can be found on YouTube. Much less expensive than having a service center install them.

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Reviewed in the United States on February 14, 2026

Verified Purchase

Customer Review

Houston, US

★★★★★ 4

Always fits and is easy to install

Size: 9.5" x 10.9" x 2.1"

We've bought these for years and they always fit and are easy to install. Easy to see when they are dirty and need to throw away. Embarrassed that we let the car dealership do it for so long. We set on six-month subscribe and save so that we know when to replace it - change it whenever it shows up!

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Reviewed in the United States on September 13, 2023