Shipping Estimate
USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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Description
Borla 40741 - XR-1 Multicore MufflerDesigned for use on 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
Designed for use on 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 - 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 Venues Requiring A Muffler - 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 use on 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.
- 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.
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4.4 ★★★★★
Based on 335 reviews
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Product Reviews
★★★★★ 5
Perfect Fit for 2018 Forester
I've purchased various filters from EP Auto and each one matches the vehicle's needs and is a good value.
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Reviewed in the United States on March 16, 2026
★★★★★ 4
Easy self maintenance.
Does the job of what theu try to upset you Valvoline for a fraction of the price and easy to install.
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Reviewed in the United States on August 27, 2025
★★★★★ 5
Good filter!
I have used this replacement filter for the past 5 changes. Works great
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Saved money
Saved money d.i.y.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Fits my 2015 Subaru Forester perfectly
Works as designed.
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Reviewed in the United States on April 2, 2026