SKU: 73353398435

Borla 40976 - XR-1 Multicore Collector Muffler Shorty

Sale price$321.75 Regular price$357.50
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Description

Borla 40976 - 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) 2.25" Inlets (1) 4" Outlet 6.75" 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 - 2.25" Inlets (4)/ 4" Outlet 6.75" 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: 73353398435

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4.8 ★★★★★
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Miss Havisham
Alexandria, US
★★★★★ 3
Torn About Whether to Keep Using
I bought the Vanilla Cardamon flavor, because I'm allergic to mint, and it makes my mouth swell. It tastes nice. The "flavor" doesn't last a long time, so you don't necessarily get that fresh breath feeling. The toothpaste works fine. There seems to be some controversy over whether Nano Hydroxyapatite Toothpaste really protects teeth as well as fluoride, but I know some people swear by it. Obviously, there is also lot of controversy regarding fluoride and whether it's healthy, so I get why this might be a better option for some. I've been using it for about a year, and I got a fairly bad cavity recently, but of course, this is just anecdotal evidence. I'm not sure whether I'll keep using it or not.
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Reviewed in the United States on December 13, 2025
M
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Mina
Cuba, US
★★★★★ 5
Great for sensitive teeth
Size: Pack of 3, 4 Ounce, Set name: E. Ela Mint, Coco Ginger, Lemon Lavender
If you have sensitive teeth, these are great. I had prescription toothpaste and couldn’t get it anymore and picked this up. It’s helped tremendously. No different than normal toothpaste consistency-wise but the flavors are the best.
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Reviewed in the United States on April 11, 2026
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DAVID
Natrona Heights, US
★★★★★ 5
Truly works and worth every penny.
Size: Pack of 3, 4 Ounce, Set name: E. Ela Mint, Coco Ginger, Lemon Lavender
This is a game changer. All other toothpastes should pack up and close shop. I don’t know what I Was using before, but it was not toothpaste. This is the only toothpaste you should be using.
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Reviewed in the United States on May 28, 2026
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Javier Villegas
Natrona Heights, US
★★★★★ 5
Delicious and a great way to get vitamin C
Flavor Name: Natural Fruit, Size: 8 Ounce (1 Pack)
Love these! Super good. Wish they had a bucket of 'em to sell too, not just bags. I'd buy one in an instant
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Reviewed in the United States on May 16, 2026
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Kriegs
Lake Worth, US
★★★★★ 5
Great tasting and our son's favorite treat!
Flavor Name: Natural Fruit, Size: 8 Ounce (1 Pack)
Our son loves these! He asks for them every day! For being no sugar they taste great! My kid is obsessed! We have bought these several times at this point and while I can not say whether or not they work in terms of vitamin c, I simply wouldnt know for sure, they do work in keeping him calm in public places. Its great that there is no food dyes in the ingredients too so that I can feel good giving them to him. In terms of quality, we have yet to recieve any broken lollipops or loose, candy or open wrappers so that is great! The paper sticks to start to peel apart, but usually that's by the time the lollipop is finished. I think the amount we paid for what we got was well worth it.
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Reviewed in the United States on September 18, 2025

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