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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
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Description
Borla 400287 - ProXS? Muffler Un-Notched NeckProduct Description BORLA(R) ProXS mufflers are designed for supreme street performance, offering aircraft quality high quality T 304 stainless steel, all welded construction and more for increased horsepower and torque. Independent tests prove maximum flow capability. Exhaust Muffler; Pro XS Series; T 304 Stainless Steel; 9 1 2 Inch Width X 4 Inch Height Case; Dual 2 1 4 Inch Inlet; Dual 2 1 4 Inch Outlet; 19 Inch Body 24 Overall Length Features &
Product Description
BORLA(R) ProXS™ mufflers are designed for supreme street performance, offering aircraft-quality high quality T-304 stainless steel, all-welded construction and more for increased horsepower and torque. Independent tests prove maximum flow capability.
Exhaust Muffler; Pro XS Series; T-304 Stainless Steel; 9-1/2 Inch Width X 4 Inch Height Case; Dual 2-1/4 Inch Inlet; Dual 2-1/4 Inch Outlet; 19 Inch Body/24 Overall Length
Features & Benefits
- BORLA(R) ProXS™ Mufflers Are Designed For Supreme Street Performance
- All Welded Construction And More For Increased Horsepower And Torque
- Independent Tests Prove Maximum Flow Capability
- The Internal Merge "X" Pipe Design In This Muffler Blends Exhaust Gases, Pulses And Sound Waves Increasing Efficiency And Sound Attenuation
- Built From High-Quality T-304 Stainless Steel, Will Not Rust
- Limited Million Mile Warranty
Attributes
- Shape: Oval
- Inlet Position: Offset Dual
- Inlet Diameter (IN): 2-1/4 Inch
- Outlet Position: Offset Dual
- Outlet Diameter (IN): 2-1/4 Inch
- Universality: Fully Universal
- Estimated Install Time (Hours): 1
- Case Diameter (IN): 9-1/2 Inch X 4 Inch
- Case Length (IN): 19 Inch
- Overall Length (IN): 24 Inch
- Color/ Finish: Silver Bare
- Material: Stainless Steel
- Wall Type: Single Wall
- Includes Tip: Without Tip
- Tip Length (IN): Without Tip
- Tip Diameter (IN): Without Tip
- Tip Finish: Without Tip
- Tip Material: Without Tip
Installation Instructions
Warranties
Specifications:
| Description_ASM | ProXS? Muffler 2.25" Dual Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Internal X-Pipe. Universal Part. Reversible Design. |
| Description_DEF | Exhaust Muffler |
| Description_DES | ProXS? Muffler - Un-Notched Neck |
| Description_EXT | ProXS? Muffler 2.25" Dual Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Internal X-Pipe. Universal Part. Reversible Design. |
| Description_INV | BorlaProXS Muffler |
| Description_MKT | Dual Inlet and dual outlet. Internal X-Pipe for increased performance and improved sound. Reversible design for installation flexibility. T-304 Stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Best of all, it's made in the USA and backed by Borla's Million-Mile warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand. |
| Description_SHO | ProXS? Muffler |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.0 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
These babies are sturdy.
You could put your fattest counsin on these babies and they wouldn't break. Easy to build, everything that you needed was included. And I love the way they look. I accidentally matched my new bed frame to them.
The lights are sticky LED light strands. They aren't sticky enough. But I dont care I didnt buy it for the lights.
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Reviewed in the United States on November 20, 2025
★★★★★ 3
Manufactured wrong
Double check the mounting holes BEFORE you assemble! I got the whole thing put together, and then realized the left side bracket was incorrectly manufactured- the mounting hole is on the front of the unit instead of the back, so I can’t actually hang it on the wall. The assembly was easy, though.
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Reviewed in the United States on April 24, 2026
★★★★★ 5
Love!!!!! GET IT!! It’s a steal
Absolutely LOVEEEEEE it! The LED light strip sucks though lol. It falls off. So we glued it…. 🤣 but it’s such a good shelf!! The lights look super cool on it! Easy to assemble. Great size. Perfect size.
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Reviewed in the United States on December 27, 2025
★★★★★ 5
Will buy again
Color: Walnut, Size: 2 Pack
Great color, hardwear was easy to install, quality great, very stable, all in great fit great size and love the look
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Reviewed in the United States on March 27, 2026
★★★★★ 5
Good product at a reasonable price.
Color: Grey, Size: 2 Pack
The shelves were easy to install, are sturdy and look good.
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Reviewed in the United States on April 14, 2026