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Description
Borla 40722 - XR-1 Multicore MufflerDesigned for vehicles racing at venues requiring a muffler, but can be used on other applications. Reversible design for installation flexibility. Patented Multicore design for maximum power. Recommend for high horsepower applications. T 304 Stainless steel will never rust. 100% welded construction for strength. High temperature T 304 stainless steel wool packing for sound control. Best of all, it's made in the USA. Just what you? d expect from the
Designed for vehicles racing at venues requiring a muffler, but can be used on other applications. Reversible design for installation flexibility. Patented Multicore design for maximum power. Recommend for high horsepower applications. T-304 Stainless steel will never rust. 100% welded construction for strength. High temperature T-304 stainless steel wool packing 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? Multi-Core Racing Muffler For Venues Requiring A Muffler - 3.5" Center Inlet/ 3.5" Center Outlet 6.25" Round x 16" Long Body 21" Overall Length. Universal Part. Reversible Design. |
| Description_DEF | Exhaust Muffler |
| Description_DES | XR-1 Multicore Muffler |
| Description_EXT | XR-1 Multi-Core Racing Muffler For Venues Requiring A Muffler - 3.5" Center Inlet/ 3.5" Center Outlet 6.25" Round x 16" Long Body 21" Overall Length. Universal Part. Reversible Design. |
| Description_INV | BorlaXR-1 Multi-Core Muffler |
| Description_MKT | Designed for vehicles racing at venues requiring a muffler, but can be used on other applications. Reversible design for installation flexibility. Patented Multicore design for maximum power. Recommend for high horsepower applications. T-304 Stainless steel will never rust. 100% welded construction for strength. High temperature T-304 stainless steel wool packing 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 Multi-Core |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.6 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 4
Cozy!
Color: Light Grey, Size: 30.0"L x 30.0"W x 7.0"Th
My bully breed loves her bed! It’s comfortable and soft which my dogs seems to love. It’s pretty durable as it’s held up pretty well in the washing machine. I wish it had a removable cover to make washing it easier.
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Reviewed in the United States on April 6, 2025
★★★★★ 5
Our dog loves it!
Color: Dark Grey, Size: 36.0"L x 36.0"W x 7.0"Th
We adopted a rescue dog from the police pound and had kept her outside for several years. Recently she has been asking to come inside. I bought her this dog bed hoping to establish a place for her to settle and feel safe when she is inside. She is a medium size dog, about 60 pounds, and this bed fits her perfectly. It is warm and comfortable. She liked it from the start and goes to it when in the house. The grey fur-look fabric is neutral and blends in unobtrusively. It has held up very well. I washed it one time but don’t think it had room to move well in the washer so it didn’t get as clean as I hoped. It could probably be washed better by hand in the bathtub. It dried well in the dryer.
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Reviewed in the United States on May 15, 2026
★★★★★ 3
Soft but flimsy
Color: Light Grey, Size: 36.0"L x 36.0"W x 7.0"Th, Color: Light Grey, Size: 36.0"L x 36.0"W x 7.0"Th
— Just wanted to add an update to say that after I left this review the seller reached out to me to get more feedback and ask how they could make the experience better. I didn’t respond because I was pretty busy. They followed up and informed me that they have issued a refund for my order and that I do not need to send the item back. I appreciate their customer service. —
The product is extremely soft. The dogs seem to love it. However, the “donut” part doesn’t hold up at all and the whole bed feels really flimsy. Our dog was on it for a couple mins and when he got up there is an obvious dent from where he was laying. We got a similar bed from Costco a couple months ago for roughly the same price. The bed holds up its shape and feels solid/heavy. We wanted a second one but it was out of stock so we looked on Amazon and found this one.
The dark gray one in the photo is from Costco and the light gray one is this product.
I probably won’t send it back (too much hassle) but if your dogs are 25lbs+ this bed may not give the support you are looking for.
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Reviewed in the United States on January 4, 2023
★★★★★ 5
Great value
Color: Camel, Size: 36.0"L x 36.0"W x 7.0"Th
I have three dogs and they all fight over this bed. It is so fluffy. They love it. Great vibrant color, great fit for the dogs, medium and larger.
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Reviewed in the United States on February 28, 2026
★★★★★ 5
Nice dog bed
Color: Camel, Size: 36.0"L x 36.0"W x 7.0"Th
Dog's love them
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Reviewed in the United States on May 10, 2026