SKU: 87700664830

Borla 40997 - XR-1 Multicore Collector Muffler Shorty

Sale price$304.65 Regular price$338.50
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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
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Exchange/Return Notes
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SKU: 87700664830

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Kelly S Piddington
Dallas, US
★★★★★ 3
fair
Color: Black-l
Good caddy, not a fan of the clear water holder. Should be black like the caddy. And maybe another taller area for the sponge
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Reviewed in the United States on March 18, 2026
A
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Andrea M
West Palm Beach, US
★★★★★ 5
A great buy!
Color: Black
So handy! This is just what I was looking for and it met my expectations perfectly. Its ideal in what it will hold and keeps things aired out nicely and organized. A good price for a great product! Easy to keep clean and so durable.
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Reviewed in the United States on January 20, 2026
L
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LaurieS
Omaha, US
★★★★★ 5
Super functional AND looks great!
Color: Black
This really does it all. It looks great and holds hand soap, a small bottle of dish soap and the various brushes for doing dishes and cleaning straws but it also has slots for things like a sponge or the drain plugs. All things contained neatly in one spot. The pull out drip tray is perfect and easy to pull out to clean. So far, it has kept its finish and have had no issues with peeling or the black coming off like some have done in past.
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Reviewed in the United States on November 23, 2025
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Forty
Louisville, US
★★★★★ 5
Good product for your daily life
Color: Black
Good product with ample capacity for use and quality.
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Reviewed in the United States on June 3, 2026
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Jillian Alvarez
Bozeman, US
★★★★★ 5
Cleaner and Calmer
Color: Black
This caddy fits everything I need, it does not slip off the counter when wet, it's a beautiful matte finish and it has made my kitchen life easier!
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Reviewed in the United States on May 28, 2026

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