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- USA
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25
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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 29 reviews
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Product Reviews
★★★★★ 5
Can't beat the 8 ounce sprays.
Size: 16 Ounce (Pack of 1), Style: SPF 50
Fantastic product. The scent is great, and the sun protection excellent. But the best thing is the fact that each of the two sprays contain 8 ounces of product for a total of 16 ounces at a very reasonable price.
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Reviewed in the United States on February 8, 2026
★★★★★ 5
safe for sensitive skin
Size: 16 Ounce (Pack of 1), Style: SPF 50
love this sunscreen. Not messy, Not itchy. Easy to apply. Sensitive skin here--great for mine. Used at the beach in Florida. And no burn!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
★★★★★ 5
Works well
Size: 16 Ounce (Pack of 1), Style: SPF 50
Smells amazing! Doesn’t leave greasy finish. The spray goes on super smooth and cover a lot of area. Sad it isn’t reef friendly and new formula has more chemicals in it than it used to.
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Reviewed in the United States on August 1, 2025
★★★★★ 4
It works
Size: 16 Ounce (Pack of 1), Style: SPF 50
One of my favorite sunscreens. It actually works, smells good, but is very dufficult to shower off
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Reviewed in the United States on January 18, 2026
★★★★★ 5
Works great
Size: 16 Ounce (Pack of 1), Style: SPF 50
This is my favorite sunscreen . Sprays on nicely . The scent isn’t overwhelming . It works great and the price is very reasonable .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 13, 2025
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