SKU: 58434622840

Borla 40728 - XR-1 Multicore Collector Muffler Standard

Sale price$341.10 Regular price$379.00
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Description

Borla 40728 - XR-1 Multicore Collector Muffler StandardThis 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 a patented, award and race winning multicore high flow design just like the standard XR-1(r) muffler for maximum power. This muffler is recommended for Dragsters, Altereds, and Roadsters. 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 Collector Racing Muffler - (4) 2.25" Inlets (1) 4" Outlet 6.75" Round x 18.5" Long Body 20.5" Overall Length. Universal Part.
Description_DEF Exhaust Muffler
Description_DES XR-1 Multicore Collector Muffler Standard
Description_EXT XR-1 Multi-Core Collector Racing Muffler - 2.25" Inlets (4)/ 4" Outlet 6.75" Round x 18.5" Long Body 20.5" 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 a patented, award and race winning multicore high flow design just like the standard XR-1(r) muffler for maximum power. This muffler is recommended for Dragsters, Altereds, and Roadsters. 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: 58434622840

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4.6 ★★★★★
Based on 27 reviews
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G
Verified Purchase
Gwen D.
Phoenix, US
★★★★★ 5
It's one of the only toys that we originally got for our pup that has lasted
Color: Blue goose - pineapple plush
We got a lab mix (we think with a Great Dane) on Labor Day weekend 2025. She has destroyed 100% of the toys we got her that weekend, with the exception of this duck. Yes, it is missing it's feet at this point (they got chewed off and torn sometime around Halloween), but the duck itself is still intact. She chews on the duck every day, it's one of her favorite toys, and it's seen some things. We've washed it a few times in the laundry machine, and it looks nice a clean every time we pull it out and let it dry. She's gnawed on it through losing puppy teeth and getting adult teeth, and she's is currently chewing away on her duck on her bed in the living room. I understand others have reported really mixed reviews, but I'm so glad we got this duck and it's one of the only toys we've bought that I feel like was worth the price because it didn't get destroyed immediately. We plan on buying another one for Christmas.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 18, 2025
M
Verified Purchase
mike
Draper, US
★★★★★ 5
It's not indestructible
Color: Blue goose - pineapple plush
Great toy , but not indestructible didn't take long at all for my dog to see the wings off
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
J
Verified Purchase
Justin
Port Orchard, US
★★★★★ 3
My Dog Hates It, Yours Might Like It
Color: Blue goose - pineapple plush
Material is nice, squeaker is not that great. My dog hates this toy and refuses to interact with it I've tried multiple times to get him to play with it and he'll immediately stop playing if I touch this toy and try to get him to play with it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
C
Verified Purchase
Cellina Danvers
Omaha, US
★★★★★ 2
Not worth the purchase
Color: Blue goose - pineapple plush
Not for aggressive chewers, my GWP destroyed this in 30 mins. The fins are completely gone and he’s already disinterested. There are better options out there.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026
K
Verified Purchase
Kindle CustomerJoanne
Battle Creek, US
★★★★★ 4
He loved the toy
Color: Blue goose - pineapple plush, Color: Blue goose - pineapple plush
My dog loved this toy, however it is not indestructible, he had it in 2 pieces within a day, but I do need to say he is a big boy and we haven’t found a toy yet that he can’t destroy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026

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