SKU: 12933641201

Borla XR1 Multicore Muffler (400371)

Sale price$134.55 Regular price$149.50
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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31

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Description

Borla XR1 Multicore Muffler (400371)Borla XR 1 Multi Core 3" Center Center 16" x 4. 25" x 7. 88" Rotary Engine Equipped Racing Muffler (400371) BORLA's XR 1 raceline products are the choice of today's hottest racers. Featuring a patented uninterrupted flow design and multi core technology, BORLA's XR 1 mufflers actually outflow a straight piece of pipe. XR 1 race products are made in the USA and constructed of high quality T 304 stainless steel for track tough durability. They meet the

Borla XR-1 Multi-Core 3" Center-Center 16" x 4.25" x 7.88" - Rotary Engine Equipped Racing Muffler (400371)

BORLA's XR-1® raceline products are the choice of today's hottest racers. Featuring a patented uninterrupted-flow design and multi-core technology, BORLA's XR-1® mufflers actually outflow a straight piece of pipe. XR-1® race products are made in the USA and constructed of high-quality T-304 stainless steel for track tough durability. They meet the strictest noise requirements. Multi-Core, Collector, and Bullet Racing mufflers feature steel wool packing for sound control. Sportsman mufflers feature high temperature continuous filament fiber (CFF) for sound control. Hands down, BORLA®’s XR-1® raceline parts offer the best balance of sound and power.

Features:

  • T-304 stainless steel will never rust — our thickest material.
  • Free-flow design for improved performance.
  • 100% welded construction is track-tough.
  • Multicore, Collector, and Bullet Racing muffler feature steel wool packing for sound control.
  • XR-1®'s race-proven design attenuates sound without restricting flow.
  • Sportsman mufflers feature high temperature continuous filament fiber (CFF) for sound control.
  • Reversible design for installation flexibility.
  • Recommended for high-horsepower racing applications.

Designed for rotary engine equipped vehicles, 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. Steel wool packing for sound control. There is no logo embossment on this part. 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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 12933641201

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4.9 ★★★★★
Based on 18 reviews
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Verified Purchase
Stephanie P.
Louisville, US
★★★★★ 1
Not worth the money
Color: 1PC, Color: 1PC
DO NOY BUY!! It lasted not even 3 minutes with my 6 year old rottie. She bit right through the nose and pulled out the stuffing. Don't waste your money!! I would give it zero stars if I could!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
K
Verified Purchase
KATHLEEN PATTERSON
Omaha, US
★★★★★ 1
Not good for an aggressive chewer
Color: 1PC
This toy is not indestructible. My little Aussie had one ear off and its neck cut in less then 6 hours and by the next day he had the foot chewed off. It is cute and he loved it, but it is stuffed and not really safe for an aggressive chewer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
N
Verified Purchase
Natasha Bowman
Lake Worth, US
★★★★★ 3
It is not a good product for a dog. I didn’t even last five minutes.
Color: 1PC, Color: 1PC
I received this package and I just gave it to my dog. Doesn’t last five minutes. It’s already tore up.
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Reviewed in the United States on June 6, 2026
A
Verified Purchase
Amber
West Palm Beach, US
★★★★★ 5
Totally worth the good price!
Size: 6 inch (Pack of 1), Style: Rabbit
My little shi-tzu has a favorite toy. It’s a stuffed lamb that she has, over time, completely torn to shreds. I needed something cheap on another order to get same day shipping, and I’m now tickled to pieces that I thought to find her something new to play with! When the box arrived, I called my little Mocha and built-up the opening of the box letting her know she had something in there. We never really get to buy her anything, so this was just too much fun 😂 As soon as I picked it up, I planned to toss it for her cause she loves to fetch things. Yeah, didn’t happen. She was so excited, she had this bunny out of my hands before they made it out of the box! Love that it’s made for dogs, and comes without things you might need to worry about, like eye buttons popping off, etc. The little tail did come off pretty quickly and since it was small, I tossed it. The bunny itself is played with at least once or twice daily, and she hasn’t broken through to the stuffing yet. So, for a cheap dog toy, it’s holding up really well. Happy with this purchase and would order something from them again.
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Reviewed in the United States on February 14, 2018
A
Verified Purchase
Amazon Customer
Fort Morgan, US
★★★★★ 5
Adorable, but probably not for medium+ dogs
Size: 6 inch (Pack of 1), Style: Rabbit
I got this for my 20 and 30 pound dogs to play with, and though I didn't really expect for it to be a durable or long-term toy for them, I think it felt like it was well-made and would probably suit dogs that are up to 15 pounds the best. It felt better than other dog toys in this price point but was filled with holes already after the first time my dog played with it on his own, which I think is probably more of a fabric issue than an actual quality issue, because it was more of a teeth puncture than seams ripping. I hope this helps! I would definitely recommend it to anyone with a small breed dog who doesn't have the same bite strength .
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Reviewed in the United States on September 22, 2023

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