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Description
Borla 400487 - ProXS? Muffler Notched NeckSingle inlet and dual outlet. Notched necks for easy clamp on installation. 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
Single inlet and dual outlet. Notched necks for easy clamp-on installation. 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, 24" Overall Length. Universal Part. Reversible Design. Notched Necks. |
| Description_DEF | Exhaust Muffler |
| Description_DES | ProXS? Muffler - Notched Neck |
| Description_EXT | ProXS? Muffler 3" Center Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Universal Part. Reversible Design. NOTched Necks. |
| Description_INV | BorlaProXS Muffler |
| Description_MKT | Single inlet and dual outlet. Notched necks for easy clamp-on installation. 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? Muffler |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.4 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 3
The Meat is a Messy Covering
Flavor Name: Antler, Size: Medium
My dog really enjoys this chew, and I was surprised how meaty it was when I took it out of the package. However, the meat is just a covering and quickly flakes off. She finished the meaty part in about 20 minutes and it was messy! The underlying antler has some criss/cross lines, where meat particles get stuck, so it keeps her interest. Otherwise, once the meat covering is off, it's the same as the original Honest Chew antler.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Frenchie tested, Frenchie approved!
Flavor Name: Y-Gnawt, Size: Small, Flavor Name: Y-Gnawt, Size: Small
My Frenchie LOVES this toy! It keeps her busy while I’m working from home, and I love that the ingredients are all-natural and safe for her, so I don’t have to worry about her gnawing and swallowing bits of plastic. This one can be a little messy at first but SO worth it!
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Girl’s best friend
Style: I-Squeak Cone, Style: I-Squeak Cone
I bought one of these 2 years ago for my super aggressive chewer. She is a lab-pit mix and she destroys most everything within minutes. This ice cream is one of the few toys that can issue a challenge to her. It took her 2 years to break the first one I bought her. I just ordered her another and I am so thankful the quality and durability is the same! The size may seem a little small, but my girl is 80 pounds and doesn’t have any issues with it. She even sleeps with it like it’s a baby, she has since she was a puppy. Highly recommend this toy!!
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Love this
Style: I-Squeak Cone
Bully approved. Cute as it looks, got it to go with his donut 🍩. For the durability thus far I’d say it worth the money. Has some bite marks in it but he hasn’t been able to take chunks or and pieces off for that matter. Durable harder rubber material but still soft enough to toss it and it bounce. Good size for med/lg dog.
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Reviewed in the United States on May 28, 2025
★★★★★ 5
Crazy, Cool, Cone
Style: I-Squeak Cone
My Airedale Terrier puppy loves her Bark box I-Squeak Cone Dog Toy. I keep triping over the Bark box I-Squeak Cone Dog Toy in the correrdor. I move the Bark box I-Squeak Cone Dog Toy it out of the way and find myself triping over it a few hours later. Glad she is enjoyoing her Barkbox I-Squeak Cone Dog Toy,
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Reviewed in the United States on April 25, 2026