Pay in installments of $40.50 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Borla 400937 - 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 - 2.25" Center Inlet/ 2.25" Center Outlet 3.5" 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 - 2.25" Center Inlet/ 2.25" Center Outlet 3.5" 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
4.7 ★★★★★
Based on 11 reviews
Sort
Product Reviews
★★★★★ 3
'Better than sweeping every day.
Color: Black
This vacuum is… fine. It generally cleans well enough, but honestly, I kind of wish I had spent a few more dollars on a better model.
It does a decent job picking up dirt, and it’s definitely quieter than my old robot vacuum, which was loud but surprisingly effective. That old one was very basic — the kind you’d find at big box stores — and it just kept going until it bumped into something. Simple, but it got the job done.
By contrast, this one is supposed to be more advanced, with LIDAR and smarter navigation. But I’m not convinced the “upgrades” are actually improvements. It has this frustrating habit of turning right, hitting an obstacle, inching forward, then turning right again — over and over. What happened to the LIDAR? That feels less like smart mapping and more like stubborn programming.
It also gets stuck more often than my old Shark robot vacuum. And when it does get stuck, it’s more problematic. Instead of gently bumping into low objects and stopping, it tries to climb them and ends up wedged or tangled. It has even knocked over heavier items, which my older, simpler vacuum never did.
Another annoyance: if you try to help it by sweeping debris from corners into the center, it might kick crumbs away as it passes and may or may not actually circle back to clean them up. And there’s nothing more irritating than hearing “job complete” and then immediately stepping on kitty litter it somehow missed.
Overall, it’s quieter and it cleans okay — but the smarter features don’t necessarily make it better. Sometimes simple and reliable beats “advanced” and unpredictable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2026
★★★★★ 5
Absolutely the best robot vacuum. And I know!
Color: Black
I researched and read many of the reviews on the M330 Pro. I can't see how anybody would give it less than 5 stars. I have owned 5 different robot vacs. One of which I just returned because of its poor third party app which was useless. The Lefant company knows robotics. While this is my first from them, I won't hesitate to buy from them again. It is quiet, quick, and the Lefant App which is THEIR own app and not some cheap third party, is the best. Easy to understand, and navigate. The design of the vacuum is very well thought out. The M330 Pro is a brand new model (go look at their website) and the technology has improved from even a year ago. The aid of both 2G and 5G networks is something you just don't find from anyone else. For the price, this is an absolute MUST BUY. And to make the vacuum even better, the customer service from Lefant is the best.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
★★★★★ 5
Eufy 11S Max Replacement Parts Work Well
Size: 20 PACK
For the 11S Max, the parts fit great. Changing out the parts is easy, and the parts are durable. I like that this kit has a new filter for everytime you change out the rotating brushes. Changing out the parts make the eufy vacuum cleaner function better everytime. I can’t tell a difference in the noise level when changing out the parts. Overall, thus is totally worth the money to keep the Eufy running in its best shape.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 24, 2026
★★★★★ 5
Great buy
Size: 20 PACK
This is a great buy to replace filters etc on my robot
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
★★★★★ 5
Perfect for my Eufy
Size: 20 PACK
Nice to change out parts regularly. Easy to use. Fit & work perfectly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 17, 2025