Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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Description
Borla 400374 - XR-1 Multicore MufflerDesigned 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. High temperature T 304 stainless steel wool packing for sound control. There is no logo embossment on this part. Best of all, it's made in the USA. Just
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. High temperature T-304 stainless 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.
Specifications:
| Description_ASM | XR-1? Multi-Core Racing Muffler For Rotary Engine Equipped Vehicles - 4" Center Inlet/ 4" 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 Rotary Engine Equipped Vehicles - 4" Center Inlet/ 4" 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 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. High temperature T-304 stainless 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. |
| 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
4.5 ★★★★★
Based on 786 reviews
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Product Reviews
★★★★★ 5
Metal VESA Mount
Great spacesaver for desk. Easy on-monitor installation and I couldn’t beat the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
★★★★★ 5
Nice for cable management
Real metal so it is very sturdy and if you tighten your screw it will be very stable too. I out it next to my monitor mount which provide a nice setup for cable management. It fits perfectly to a VESA 100x100 mount. I have a similar setup in my office but under the desk which makes it versatile.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Works awesome
Worked great! Helped to clean up clutter on my desk
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Fits HP G2 dock
I have this mounting an HP-G2 Dock on the back of my Samsung 28inch 4K monitor. I used an additional flat plate to mount this to the left with the monitor arm going the plate and into the monitor. So good I bought a second one for my co worker so our desk don't have wires on them now.
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Reviewed in the United States on February 25, 2026
★★★★★ 5
Otta sight-- outta mind
Great bracket!
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Reviewed in the United States on February 16, 2026