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- USA
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
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
4.2 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Great Toy
Size: One Size
My three year old loves to play fetch and this dog toy was perfect for him. With the bright, signature orange and blue colors, he can easily spot it when I throw it even in the night. He really loves it when it bounces on the ground as he prefers to jump up and get it. The toy has been through a lot and so far he hasn't chewed through it yet as it is very thick for him to get through.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
★★★★★ 1
Lasted whole five minutes!
Size: One Size, Size: One Size
I received this last night and did a cute "unwrapping" this morning for my dog, who was thrilled to get new balls. Unfortunately, the excitement was short-lived. I know the description says this isn't a chew toy or for aggressive chewers, but lasting only five minutes is ridiculous. You can see in my photo that it ripped from a single bite while my pup was just pulling the ball. I thought that was exactly what this toy was designed for!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
★★★★★ 5
Super fun!
Size: One Size
Our GSD loves this toy whether playing with it by himself or with us - he grabs the rope and flings it then chases it…it’s become his favorite toy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
★★★★★ 3
Dog loves it, but it comes apart pretty quick.
Size: One Size
The dog loved chasing it and playing tug-of-war, but it lasted less than 30 days. If the outer rubber portion of cover was thicker, or all canvas material, it would probably last for a few months of rough play. May buy again if I can't find something similar to try.
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Reviewed in the United States on August 4, 2025
★★★★★ 5
This is a big ball.
Larger than I thought but still a great toy for a heavy chew pup, easy to toss and won't go under funiture. She has the same ball in a 5 inch size so I know it's quality and will last. Can't wait for Summer, will make a great yard ball.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
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