Exhaust› Mufflers and Resonators

Borla

Borla Universal 2.25in Inlet/Outlet Oval Center/Offset 14in x 4in x 9.5in ProXS Muffler

$476.99

SKU: B00F 40357

In Stock
In Stock
Ships by Jun 20
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Borla 40357 is a universal ProXS series muffler. It features a T-304 stainless steel construction for superior corrosion resistance and 100% welded assembly for strength. The muffler has a 2.25" offset inlet and a 2.25" center outlet, with an oval body measuring 4" x 9.5" and a body length of 14". Its overall length is 19".

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandBorla
Part NumberB00F 40357

Videos

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We Ranked Every Borla Muffler we Carry!
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40357 Borla ProXS mufflers on 3.7L V-6 09 Acura TL

40357 Borla ProXS mufflers on 3.7L V-6 09 Acura TL
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2010 Toyota Matrix S w/ BORLA PRO-XS!
Borla ProXS mufflers on a Genesis Sedan 3.8 AWD

Borla ProXS mufflers on a Genesis Sedan 3.8 AWD
Borla Mufflers Acura TL 3.7 V6 **Pro Xs Mufflers**

Borla Mufflers Acura TL 3.7 V6 **Pro Xs Mufflers**
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Acura TL SH-AWD Borla Pro Xs Mufflers! **HEADPHONES IN**
Borla S-type Exhaust Lexus IS 350 + 4 inch Exhaust tips | **Best Upgrade**

Borla S-type Exhaust Lexus IS 350 + 4 inch Exhaust tips | **Best Upgrade**
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2014 Lexus GS350 GS 350 F-Sport - Borla ProXS Mufflers (40357) - interior audio

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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