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Description
Borla 400939 - Resonator CrateMuffler? / UniversalPerfect for applications with limited space. If you want to lower the sound pressure level (SPL) of your CrateMufflers?, you can install the Resonator Option. The Resonator Option is designed to attenuate overall sound. This resonator can also be used in any system of this diameter. This is perfect for customers looking to reduce the sound level 2 3 dB(A). This straight through design will not degrade the performance of your vehicle. There is no logo
Perfect for applications with limited space. If you want to lower the sound pressure level (SPL) of your CrateMufflers?, you can install the Resonator Option. The Resonator Option is designed to attenuate overall sound. This resonator can also be used in any system of this diameter. This is perfect for customers looking to reduce the sound level 2-3 dB(A). This straight-through design will not degrade the performance of your vehicle. There is no logo embossment on this part. Reversible design for installation flexibility. High-quality T-304 austenitic stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Best of all, it's made in the USA and backed by Borla's Million-Mile warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.
Specifications:
| Description_ASM | CrateMuffler? Resonator - 3" Center Inlet/ 3" Center Outlet 4" Round x 10" Long Body 14" Overall Length. Universal Part. Reversible Design. |
| Description_DEF | Exhaust Muffler |
| Description_DES | Resonator - CrateMuffler? / Universal |
| Description_EXT | Resonator - Sound Level N/A Resonator For Resonator - 3" Center Inlet/ 3" Center Outlet 4" Round x 10" Long Body 14" Overall Length Universal Part Reversible Design. |
| Description_INV | BorlaResonator |
| Description_MKT | Perfect for applications with limited space. If you want to lower the sound pressure level (SPL) of your CrateMufflers?, you can install the Resonator Option. The Resonator Option is designed to attenuate overall sound. This resonator can also be used in any system of this diameter. This is perfect for customers looking to reduce the sound level 2-3 dB(A). This straight-through design will not degrade the performance of your vehicle. There is no logo embossment on this part. Reversible design for installation flexibility. High-quality T-304 austenitic stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Best of all, it's made in the USA and backed by Borla's Million-Mile warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand. |
| Description_SHO | Resonator |
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
4.1 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 4
Plastic key holder
Color: Black
A little light as it is plastic, but it does the job
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
★★★★★ 5
Great for keys
Color: Black
I haven’t misplaced my keys since I bought it. I do wish it were a little heavier in weight but it gets the job done
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Reviewed in the United States on May 15, 2026
★★★★★ 1
I do not recommend
Color: White
Very flimsy and cheap
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Reviewed in the United States on May 9, 2026
★★★★★ 3
Great for simple jewelry
Color: Black
I’ve had it for some time now, it’s okay. Not the material I was expecting. It’s sturdy. It came with a few scratches, I did get a used one though. I recommend this product for simple jewelry for kids, and get something better quality for your more expensive jewelry.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Good for the price
Color: Black, Color: Black
Very cute, well made, it is plastic but it’s durable. Better than the higher priced item I was considering.
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Reviewed in the United States on November 5, 2025