SKU: 87700664830

Borla 40997 - XR-1 Multicore Collector Muffler Shorty

Sale price$304.65 Regular price$338.50
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

Borla 40997 - XR-1 Multicore Collector Muffler ShortyThis is the HOT set up in drag racing. This patented, award and race winning vacuum Wave Collector was designed to replace your current open header collector and serves as a power producing merge collector and muffler all in a single unit. The technology in this unit results in pulling air through the engine faster, which creates more power. When an exhaust valve opens, an energy wave is created from the expanding combustion gases. When this wave

This is the HOT set up in drag racing. This patented, award and race-winning vacuum Wave Collector was designed to replace your current open header collector and serves as a power producing merge collector and muffler -- all in a single unit. The technology in this unit results in pulling air through the engine faster, which creates more power. When an exhaust valve opens, an energy wave is created from the expanding combustion gases. When this wave encounters a lower pressure area such as a larger collector pipe or the atmosphere, a reversion wave is reflected back toward the exhaust valve. Borla's Vacuum Wave Collector Muffler ensures this wave's "anti-node" reaches the exhaust valve at the precise time for its lower pressure to help fill the combustion chamber with a fresh charge and to further extract spent gases from the chamber via a vacuum effect. Made with the same patented, award and race winning flow through design as the Standard XR-1(r) Collector/Muffler. This muffler, however, is designed for door car applications where a Standard size Collector/Muffler is too large. This muffler is recommended for Full Chassied Cars. Accepted in NHRA, IHRA, Hot Rod Series, Brackets, Super Chevy, and NSCA. Recommend for high horsepower applications. T-304 Stainless steel will never rust. 100% welded construction for strength. T-304 stainless steel wool for sound control. Best of all, it's made in the USA. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.


Specifications:

Description_ASM XR-1(r) Multicore Shorty Collector Racing Muffler - (4) 2.125" Inlets (1) 3.5" Outlet 6.25" Round x 14" Long Body 16" Overall Length. Universal Part.
Description_DEF Exhaust Muffler
Description_DES XR-1 Multicore Collector Muffler Shorty
Description_EXT XR-1 Multi-Core Shorty Collector Racing Muffler - 2.125" Inlets (4) 3.5" Outlet 6.25" Round x 14" Long Body 16" Overall Length. Universal Part.
Description_INV Borla(r) XR-1 Collector Muffler
Description_MKT This is the HOT set up in drag racing. This patented, award and race-winning vacuum Wave Collector was designed to replace your current open header collector and serves as a power producing merge collector and muffler -- all in a single unit. The technology in this unit results in pulling air through the engine faster, which creates more power. When an exhaust valve opens, an energy wave is created from the expanding combustion gases. When this wave encounters a lower pressure area such as a larger collector pipe or the atmosphere, a reversion wave is reflected back toward the exhaust valve. Borla's Vacuum Wave Collector Muffler ensures this wave's "anti-node" reaches the exhaust valve at the precise time for its lower pressure to help fill the combustion chamber with a fresh charge and to further extract spent gases from the chamber via a vacuum effect. Made with the same patented, award and race winning flow through design as the Standard XR-1(r) Collector/Muffler. This muffler, however, is designed for door car applications where a Standard size Collector/Muffler is too large. This muffler is recommended for Full Chassied Cars. Accepted in NHRA, IHRA, Hot Rod Series, Brackets, Super Chevy, and NSCA. Recommend for high horsepower applications. T-304 Stainless steel will never rust. 100% welded construction for strength. T-304 stainless steel wool for sound control. Best of all, it's made in the USA. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.
Description_SHO XR-1 Collector


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 87700664830

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Glow
Houston, US
★★★★★ 5
Extremely satisfied with my purchase.
Color: yellow
The ‘bag’ size is big enough to fit a LARGE (up to a 10 ounce bar of homemade/ handcut soap) bar or many tiny pieces. I am tired of using body wash (full of harmful chemicals) & a ‘pouf’ that may not be getting fully clean after throwing it in the washing machine periodically. The fabric quality is organic, natural & PREMIUM! It has little loops on the fabric which are great for lightly exfoliating & cleaning the skin, has a bead to keep opening closed and the string is long enough to fit around your wrist to hold it easily while bathing or showering. As far as effectiveness, it gets very bubbly if you get the fabric wet 1st & then make some traction (rub the wet bag back & forth onto the wet soap bar) between soap and the bag. For washing, use ‘wash bags’ (which are sold on Amazon & other retailers in many sizes) to keep them from being torn from buttons, zippers, etc on other items in the wash. With 8 in a pack, you should always have a clean one to use, while washing a previously used one. Rinse it out & Hang it after use to fully dry.
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Reviewed in the United States on October 23, 2025
R
Verified Purchase
RH
Cuba, US
★★★★★ 5
I love these
These bags are the best for bar soap. They scrub and rinse out nice.
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Reviewed in the United States on April 14, 2026
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DaniFinchh
Omaha, US
★★★★★ 5
Great product
Color: yellow
These are great! Super lightweight, easy to wash, and not painful to scrub your skin with. The price is right and the product is durable, fits all kinds of shaped and sized soaps, lathers well, and does not carry an abnormal smell.
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Reviewed in the United States on November 19, 2025
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Mama Maureen
Dallas, US
★★★★★ 5
Highly recommend!
Color: yellow
Very pleased with this product. The bags are soft but still exfoliate well. They hold lather after wetting the outside, but then allow the soap to dry completely when hung by the drawstring. I will buy them again when I need them.
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Reviewed in the United States on May 17, 2026
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Lynne Summers
Omaha, US
★★★★★ 4
Good quality
Color: yellow
Perfect, just what I needed
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Reviewed in the United States on November 28, 2025

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