SKU: 9981396945

MAD FatBoy 3" Resonator Delete BMW X3M X4M S58 F97 F98 2018+

Sale price$175.77 Regular price$195.30
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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

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Description

MAD FatBoy 3" Resonator Delete BMW X3M X4M S58 F97 F98 2018+We are excited to introduce the MAD Resonator Delete Kit, an exceptional upgrade for the F97 X3M and F98 X4M. Designed to transform your exhaust note into a bold, aggressive tone, making it a perfect match for the S58 engine. Fitment 2019 2022 F97 G01 BMW X3M 2019 2022 F97 G01 BMW X3M Competition 2019 2022 F98 G02 BMW X4M 2019 2022 F98 G02 BMW X4M Competition This resonator delete kit eliminates the restrictive factory resonator and replaces it with

We are excited to introduce the MAD Resonator Delete Kit, an exceptional upgrade for the F97 X3M and F98 X4M. Designed to transform your exhaust note into a bold, aggressive tone, making it a perfect match for the S58 engine.

Fitment
2019-2022 F97/G01 BMW X3M
2019-2022 F97/G01 BMW X3M Competition
2019-2022 F98/G02 BMW X4M
2019-2022 F98/G02 BMW X4M Competition

This resonator delete kit eliminates the restrictive factory resonator and replaces it with 76mm T304 stainless steel tubing, featuring a precision-engineered X-pipe. The MAD X-pipe promotes balanced exhaust flow, minimizing irregularities and delivering a refined, consistent tone. The result is an exhilarating sound that’s bold under acceleration and smooth while cruising.

Enhanced Exhaust Sound: Replace the factory resonator and enjoy a richer, deeper exhaust note that adds character to your driving experience.
Durable Construction: Made with high-quality T304 stainless steel and TIG-welded for long-lasting reliability under demanding conditions.
Effortless Installation: Designed for easy installation, this kit is accessible for both DIY enthusiasts and professional installers.

Developed through rigorous testing for real-world performance
TIG-welded T304 stainless steel with back-purged construction
Noticeable improvement in exhaust tone
Subtle, drone-free operation when paired with the stock exhaust system
Aggressive note under acceleration for an elevated driving experience

The MAD Resonator Delete Kit is the ultimate enhancement for F97 and F98 owners looking for a dynamic exhaust note. Whether you’re a track enthusiast or a weekend cruiser, this upgrade offers a seamless blend of sound and quality.

Unlock the full potential of your BMW S58 engine with this precision-engineered kit. Order yours today and take your X3M or X4M to the next level!

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 9981396945

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4.1 ★★★★★
Based on 19 reviews
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Gail
Bozeman, US
★★★★★ 5
The answer to calloused feet.
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
If you have dry callused soles, these are your answer. All my calluses left and my feet were very soft. They should not be walked in unless you are very, very careful as you will slip and fall. I stopped using them for a while and all my problem calluses are back, even when I use lotion at night. They tell you not to sleep in them, I don't know why. I do put these on at night and end up taking them off later as they're not comfortable to sleep in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
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Angela A Mathis
Draper, US
★★★★★ 5
Good Product
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
These socks are good for moistening. Durability is awesome Fit true to size. Traction could be a little better. The sock are very comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
T
Verified Purchase
Tj
Bozeman, US
★★★★★ 4
Slippery when wet!!!
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
“These moisturizing slippers are actually really comfortable and feel great on the feet. They’re soft, cozy, and do help moisturize while you wear them. I also think they’re a good value for the money. The only downside is that once your feet get moisturized, they can get slippery inside the slippers, so I wouldn’t recommend walking around too much in them. Better for relaxing and letting your feet soak up the moisture than for being up and moving around.”
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Reviewed in the United States on May 26, 2026
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Verified Purchase
J. Randle
Whiting, US
★★★★★ 5
Love them
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I wear a size 11.5 in ladies shoe and these just barely fit. Butttt after I put lotion on my feet and slipped these on and left them on for about 30 mins. It left my feet really soft! They work great as intended. Would buy again
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Reviewed in the United States on January 31, 2026
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Verified Purchase
Vonda Kioultzopoulos
Boise, US
★★★★★ 3
Effective but may be uncomfortable
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I have eczema on my feet and use a prescription cream that I leave on overnight. I often have a problem sleeping in socks but the silicone feels cool on my feet. The only drawback I have is the opening of the socks feel very tight around my ankles making them uncomfortable on me. I wish the opening was a bit more flexible.
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Reviewed in the United States on September 20, 2025

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