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- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
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Description
Borla 400493 - ProXS Muffler Notched Neck PRO-XS 2.50in. DUAL IN/OUT 19 X 9.5 4inDual inlet and dual outlet. Internal X Pipe for increased performance and improved sound. Notched necks for easy clamp on installation. Reversible design for installation flexibility. High quality 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
Dual inlet and dual outlet. Internal X-Pipe for increased performance and improved sound. Notched necks for easy clamp-on installation. Reversible design for installation flexibility. High-quality 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.
Features & Benefits
- High-Quality T-304 Austenitic Stainless Steel Will Never Rust: 100 Percent 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
- Notched Necks For Easy Clamp-On Installation
- Reversible Design For Installation Flexibility
- Limited Million Mile Warranty
Attributes
- Shape: Oval
- Inlet Position: Offset Dual
- Inlet Diameter (IN): 2-1/2 Inch
- Outlet Position: Offset Dual
- Outlet Diameter (IN): 2-1/2 Inch
- Case Diameter (IN): 9-1/2 Inch X 4 Inch
- Case Length (IN): 19 Inch
- Overall Length (IN): 24 Inch
- Includes Tip: No
- Tip Finish: No Tip
- Estimated Install Time (Hours): 1
- Color/ Finish: Bare
- Material: Stainless Steel
- Wall Type: Single Wall
- Internal Construction: Straight Through Single Core
- Tip Length (IN): No Tip
- Tip Diameter (IN): No Tip
- Tip Material: No Tip
Specifications:
| Description_ASM | ProXS? Muffler 2.5" Dual Inlet/ 2.25" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Internal X-Pipe. Universal Part. Reversible Design. Notched Necks. |
| Description_DEF | Exhaust Muffler |
| Description_DES | ProXS? Muffler - Notched Neck |
| Description_EXT | ProXS? Muffler 2.5" Dual Inlet/ 2.25" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Internal X-Pipe. Universal Part. Reversible Design. NOTched Necks. |
| Description_INV | BorlaProXS Muffler |
| Description_MKT | Dual inlet and dual outlet. Internal X-Pipe for increased performance and improved sound. Notched necks for easy clamp-on installation. Reversible design for installation flexibility. High-quality 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. |
| 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
4.9 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Let’s get wired up
Size: 12 pairs
This package arrived on time very easy to use and install made hook up to my new amp so much easier
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
★★★★★ 5
The Thick Red and Black Spaghetti of Power
Size: 20FT Black & 20FT Red
If electricity had highways, this would be an interstate.
The cable feels substantial, the copper conductors are flexible enough to work with, and the included lugs and heat shrink tubing make installation easier. Great for batteries, inverters, solar systems, RV electrical upgrades, marine projects, and welding setups.
Voltage drop stays low thanks to the heavy gauge construction, and the insulation feels durable enough for demanding environments.
Overall, a solid wiring kit that inspires confidence when moving serious current.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
★★★★★ 5
Great cable kit.
Size: 20FT Black & 20FT Red, Size: 20FT Black & 20FT Red
Great heavy duty cable. Good thick feeling insulation that looks the real deal. Wire is soft enough to route easily without too much resistance. Appreciate it coming with the lugs and heat shrink instead of you having to source extras. Seems to be truly copper as listed. Great deal for the length if so. Worked for what I needed on my UTV.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Cheap price for the cable and terminal ends with heat shrink.
Size: 20FT Black & 20FT Red
Good 6 gauge wire, jacket seems sturdy and like it won't crack easily over time like some wire.
Comes with all the connectors shown too so you don't need to find end ring connections to terminate the ends.
Just need a punch or crimp tool for the terminals but if you already have that then just cut your wire length and add the ends for battery cable.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Fixed my over temp warning issue.
Easy to change and work like new. No more over temp warning at idle.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2025
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