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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
For Your Every Summer RSVP, with Code: SUMMER15
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
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.7 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Repeat buyer
Color: Colorful, Size: Medium
This lasts a long time. We have a bigger one outside and smaller in east for dog to grab and us
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
★★★★★ 1
Not as described
Color: Colorful, Size: Large, Color: Colorful, Size: Large
This item is vibrant in color, but I could tell right away, It wasn’t going to be durable and indestructible like the description said. My dog had it destroyed in less than a minute.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Great play for everyone
Color: Colorful-2, Size: Medium, Color: Colorful-2, Size: Medium
We have Shelties and they love it!!
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Here’s that ball we need!
Color: Colorful, Size: Medium, Color: Colorful, Size: Medium
Our Blue Heeler loves this ball, the tabs are easy for her to grab and entertain herself. Great toy
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Reviewed in the United States on April 4, 2026
★★★★★ 5
Durable ball for aggressive chewers
Color: Colorful, Size: Medium
Excellent, sturdy ball that can both chased and shaken.
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Reviewed in the United States on May 31, 2026