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Description
Borla 40665 - Pro XS Muffler Un-Notched NeckProduct Description Reversible design for installation flexibility. 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. Exhaust Muffler; Pro XS Series; T 304 Stainless Steel; 9 1 2 Inch Width X 4 Inch
Product Description
Reversible design for installation flexibility. 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.
Exhaust Muffler; Pro XS Series; T-304 Stainless Steel; 9-1/2 Inch Width X 4 Inch Height Case; Single 2-1/2 Inch Center Inlet; Single 2-1/2 Inch Offset Outlet; 19 Inch Body/24 Overall Length
Features & Benefits
- 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
- All BORLA® Mufflers Are Manufactured Using Ultra Durable, Continuous Strand Sound Absorbing Composite Filament
- Built From High-Quality T-304 Stainless Steel, Will Not Rust
- Flared Collectors On Both Ends Increase The Internal Diameter Of The Muffler Allowing For Optimal Flow
- Limited Million Mile Warranty
Attributes
- Shape: Oval
- Inlet Position: Center Single
- Inlet Diameter (IN): 2-1/2 Inch
- Outlet Position: Offset Single
- 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
- Universality: Fully Universal
- 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
Installation Instructions
Warranties
Specifications:
| Description_ASM | ProXS? Muffler 2.5" Offset Inlet/ 2.5" Center Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Universal Part. Reversible Design. |
| Description_DEF | Exhaust Muffler |
| Description_DES | ProXS? Muffler - Un-Notched Neck |
| Description_EXT | ProXS? Muffler 2.5" Offset Inlet/ 2.5" Center Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Universal Part. Reversible Design. |
| Description_INV | BorlaProXS Muffler |
| Description_MKT | Reversible design for installation flexibility. 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. |
| Description_SHO | ProXS? |
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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4.5 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Excellent product for dry mouth
Scent Name: Berry, Size: 100 Count
If you are having trouble with dry mouth, especially while sleeping, this is definitely the product for you. I have severe dry mouth and have tried multiple things including hard candy (yes, I know not very smart) as well as different biotin products, the mouthwash, the spray and the gel, which all do work, but do not last for very long. These stay in place open the corner of your mouth, last for hours and truly work. I highly recommend it if you are having a dry mouth issue
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 5, 2026
★★★★★ 5
Works great
Scent Name: Berry, Size: 100 Count
I have to use these for about 1/2 a year. I keep bronchitis and sinusitis from about Oct. to April every since I was a child. When I am suffering with these I can't breath through my nose, epically at night while sleeping and would wake up several times a night with dry mouth so bad ir was literally painful. My mom turned me on to these because she was using the with her CPAP. I sometimes have a bit of difficulty getting them to stay put but overall they are great. I have tried the OG, cinnamon, and berry. The OG have no real taste, but you wake up with a sweet taste in your mouth. I tried the cinnamon because I love cinnamon and didn't listen to the reviews stating how strong the flavor is, big regret, it's like putting two or three fireballs in your mouth, won't be making that mistake again. The berry ones are actually best in my opinion. They have a light berry flavor that isn't overpowering, isn't quite as sweet as the OG. Whichever one you choose you won't wake up in pain. I do suggest using only one at first as opposed to the two they recommend, unless you like waking up with your head on a water logged pillow. One generally gets me through the night unless my congestion is super bad, then I will sometimes have to use a 2nd one about 1/2 way through my night when I wake up for the bathroom and realize it's already completely dissolved.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 21, 2025
★★★★★ 5
I Loved this book!!
Format: Hardcover
This was an excellent book. I used it for a Career Counseling course in Graduate School. I will use this book throughout the rest of my schooling. I will be able to use it as a study guide for my CPCE and NCE exam, as well as use it as a reference in my career as a school counselor. They have many useful appendices in the back of the book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 18, 2017
★★★★★ 5
GREAT!
Format: Hardcover
I think this book did a great job of explaining the different models and theories of counseling psychology. It went in depth on many of the concepts and made for great learning.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2016
★★★★★ 5
Career Counseling
Format: Hardcover
An excellent desk reference
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Reviewed in the United States on December 18, 2023