Pay in installments of $30.88 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 8 - Aug 13
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Borla 401383 - XR-1 Multicore MufflerThe compact diameter of these mufflers make them great for both classic and late model cars with ground clearance issues. Sound is attenuated with the Borla patented Multicore design and high temperature continuous filament fiber (CFF) acoustic material, without losing any horsepower or torque. 100% welded construction for strength. Built with T 304 stainless steel they have unequaled durability and great looks that you can polish to a mirror like
The compact diameter of these mufflers make them great for both classic and late model cars with ground clearance issues. Sound is attenuated with the Borla patented Multicore design and high-temperature continuous-filament fiber (CFF) acoustic material, without losing any horsepower or torque. 100% welded construction for strength. Built with T-304 stainless steel they have unequaled durability and great looks that you can polish to a mirror like finish if desired. 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 Muffler Racing Muffler - 2.5" Center Inlet/ 2.5" Center Outlet 4" Round x 14" Long Body 19" Overall Length. Universal Part. Reversible Design. |
| Description_DEF | Exhaust Muffler |
| Description_DES | XR-1 Multicore Muffler |
| Description_EXT | XR-1? Multi-Core Muffler Racing Muffler - 2.5" Center Inlet/ 2.5" Center Outlet 4" Round x 14" Long Body 19" Overall Length. Universal Part. Reversible Design. |
| Description_INV | BorlaXR-1 Multi-Core Muffler |
| Description_MKT | The compact diameter of these mufflers make them great for both classic and late model cars with ground clearance issues. Sound is attenuated with the Borla patented Multicore design and high-temperature continuous-filament fiber (CFF) acoustic material, without losing any horsepower or torque. 100% welded construction for strength. Built with T-304 stainless steel they have unequaled durability and great looks that you can polish to a mirror like finish if desired. 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.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.0 ★★★★★
Based on 25 reviews
Sort
Product Reviews
★★★★★ 5
Comfortable summer beach/ leisure shirt
Fit perfect, 5'10" 205. Athletic build.
It's true you need to hang this shirt out of the dryer or iron.
But its a super comfy shirt made out of good quality material so for the price now days for sure worth it, was actually excited about it. Good buy nice and light.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2025
★★★★★ 5
Surprisingly good quality and cut.
Considering that this brand tends to be a bit hit-or-miss (mostly hit) I was apprehensive about the fit and sizing. These fit so well that I bought other colours and have no issue with the sleeve length (often cheaper brands have very short sleeves) nor with the length of the body of the shirt.
They look great, the fabric quality is excellent, and the colours are compatible with a broad range of pants (you can't go past black pants, black jacket/blazer, and any colour of this underneath).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2025
★★★★★ 5
Nice feel
Special Size: Two Pack, Size: Medium, Color: A-wine Red/Dark Grey
I’m 5’8”, trim and athletic build. The sleeves are a tiny bit tight and would be unpleasant on a warmer than expected day, but for a cool day just fine. Nice fit. Feels pleasant to the touch.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 5, 2026
★★★★★ 4
Good fit, light weight, very comfortable
Special Size: Two Pack, Size: X-Large, Color: Black/Army Green
I've purchased several of these now and overall they seem like a decent buy for the price. They are very light weight and seem to retain their shape and avoid wrinkling when hung to dry after washing. Despite never seeing a clothes dryer however, the black variant still pilled up a bit after moderate use.
There seems to be some variation in sizing: all the black and olive colored ones seem pretty consistent but the gray run small and the blue just a bit large (all purchased in XL, me at 6'3 and 225#)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2024
★★★★★ 5
Great with a great price
Special Size: Two Pack, Size: X-Large, Color: A-blue/Army Green
First off. I am female 5’10”. I thought the extra large fit great. The material is very soft and light. I think they’re warm though. I just washed them for the first time yesterday with dryer. Air dry. I’d like to see after a couple washes and know how the dryer affects it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
recommand products
Adorable Kitten Youth Tee - Cute Cat Tee for Kids, Gifts for Cat Lovers, Birthday Present, Animal Lovers Shirt, Playful Kids Shirt
23.82
Souldier Guitar Strap Persian Black
69.00
Saying Sorry Doesn’t Make It Alright Tee
24.40
Patriotic Love Sweatshirt | Unisex Crewneck, Cozy Top for Celebrations, Gifts, Independence Day, Casual Style, Everyday Comfort
30.80
"Elegance Carved in Chaos" Graphic Unisex Hoodie-Cozy Street Wear
31.95