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Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 24 - Sep 29
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Borla 400492 - ProXS? Muffler Notched NeckDual 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.
Specifications:
| Description_ASM | ProXS? Muffler 2.25" 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 2.25" 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
4.3 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Good product
Color: gray
Nice fit. Easy yo install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
★★★★★ 4
Exact replacements for ‘25 Forester air/cabin filters
Color: gray
Exact replacement set for ‘25 Subaru Forester. Reasonable cost, quality seems OK. Easy install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 5
Work Great
Color: gray
Works well in my car good quality and the cost is not bad compared to the other brands. Easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
★★★★★ 5
Dealer wanted $200, Changed them in 5 min
Color: gray
Good quality, saved a lot of money over having a dealer or mechanic change them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
★★★★★ 5
As good as the original
Color: gray
Perfect fit engine air filter and cabin air filter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
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