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Description
Borla 40349 - ProXS? Muffler Un-Notched NeckSingle inlet and dual outlet. Reversible design for installation flexibility. This muffler is generally used in a system that has a single inlet and dual outlets, but it can also be installed in a system with dual inlets and a single outlet. High quality T 304 austenitic Stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High temperature continuous filament fiber (CFF) acoustic material
Single inlet and dual outlet. Reversible design for installation flexibility. This muffler is generally used in a system that has a single inlet and dual outlets, but it can also be installed in a system with dual inlets and a single outlet. High-quality T-304 austenitic 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.
Specifications:
| Description_ASM | ProXS? Muffler 3" Center Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 25" Overall Length. Universal Part. Reversible Design. |
| Description_DEF | Exhaust Muffler |
| Description_DES | ProXS? Muffler - Un-Notched Neck |
| Description_EXT | ProXS? Muffler 3" Center Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 25" Overall Length. Universal Part. Reversible Design. |
| Description_INV | BorlaProXS Muffler |
| Description_MKT | Single inlet and dual outlet. Reversible design for installation flexibility. This muffler is generally used in a system that has a single inlet and dual outlets, but it can also be installed in a system with dual inlets and a single outlet. High-quality T-304 austenitic 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? |
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 1717 reviews
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Product Reviews
★★★★★ 4
Sort of good for tough chewers??
Color: Deep Roots Carrot - Small, Size: Small Dog
The actual carrot part (orange part) is tough chewer approved and my dog loves. It’s basically the same shape and size as his kong. However the leaves (green part) is not tough chewer approved. He ripped ALL those leaves off and ate them within 5 minutes of me giving him the toy. However they passed through him fine.
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Reviewed in the United States on June 8, 2025
★★★★★ 5
Aggressive chewer puppy approved
Color: Cinamutt Roll - Large, Size: Large
My aggressive chewer puppy loves this. It is pretty sturdy. He hasn't destroyed it yet and he's had it for over 3 months now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
★★★★★ 1
Pieces off in minutes.
Color: Origin - Large, Size: Medium/Large Dog
My pup chewed pieces off in minutes.
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Reviewed in the United States on June 6, 2026
★★★★★ 3
Pretty hard to clean
Color: Cinamutt Roll - Large, Size: Large
We've had this for about a week now. I have 2 dogs, one small one about 55lb. I bought this for my big girl, but lil man is determined to get the best of this toy. Usually they don't both go after the same toys, so this is interesting.
The trouble is, neither one of them can get all the treats out if something makes it all the way down into the crevice. It's surprisingly deep. The up side is that they'll try for quite a while before giving up. The down side is even if you put it in the top rack of the dishwasher, something stuck deep in there isn't going anywhere until you dig it out yourself.
I tried a plastic knife but it broke the second time I used it in there. I wound up using the metal handle of a reusable straw cleaner. Which then I had to wash that, too. Then it needs to dry overnight before it can be used again.
All in all, the dogs like it fine, it's gross to scrape out and wash, takes longer than most toys to dry, and I have the feeling that will eventually cause me to pass it to someone else's dog long before my two have gotten tired of it. At this point I'm pulling out of the toy rotation for a week or two because I'm not ready to clean it a third time.
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Reviewed in the United States on November 16, 2024
★★★★★ 5
Hyena Proof
Color: Acorn - Large, Size: Large
I have an American Bulldog that would chew a brick if he didn’t have an alternative lying around. They won’t last forever (nothing does) but we’ve had two of these over the course of a year and for him that is nothing short of a miracle. And that is daily chewing like it’s his job. I highly recommend the Acornucopia for aggressive chewers with jaws like hyenas…so it’s probably great for your dog too.
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Reviewed in the United States on June 7, 2026
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