SKU: 2030904603

MAD BMW S58 Catted Downpipes M3 M4 G80 G82 G83 W/ No CEL Guarantee & Flex Section

Sale price$944.37 Regular price$1049.30
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Pay in installments of $262.32 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Oct 31 - Nov 5

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Description

MAD BMW S58 Catted Downpipes M3 M4 G80 G82 G83 W/ No CEL Guarantee & Flex SectionIntroducing the MAD S58 Catted Downpipe The perfect upgrade for BMW enthusiasts looking to unlock more performance and a deeper, more aggressive exhaust note without triggering a check engine light. Crafted from high quality 304 stainless steel, this downpipe is built to handle extreme heat and harsh driving conditions. The smooth piping transitions are designed for maximum exhaust flow, delivering noticeable gains in horsepower, torque, and throttle

Introducing the MAD S58 Catted Downpipe

The perfect upgrade for BMW enthusiasts looking to unlock more performance and a deeper, more aggressive exhaust note without triggering a check engine light. Crafted from high-quality 304 stainless steel, this downpipe is built to handle extreme heat and harsh driving conditions. The smooth piping transitions are designed for maximum exhaust flow, delivering noticeable gains in horsepower, torque, and throttle response. Equipped with 300 cell high-flow catalytic converters, the MAD S58 Catted Downpipe improves engine sound and overall drivability while keeping the check engine light off. It bolts directly to the factory exhaust system with no cutting or welding required, making installation quick and hassle-free. It’s also fully compatible with most aftermarket exhaust systems, giving you the freedom to customize your build.

No CEL guarantee

If you get a check engine light related to the catalytic converter, MAD will replace the downpipe for free. Don’t settle for stock performance. Upgrade to the MAD S58 300 Cell Race Catted Downpipes and experience the full potential of your BMW. Race use only

Features

  • 300 CEL catalytic converters
  • No check engine light guarantee
  • Compatible with right-hand drive and left-hand drive vehicles
  • Smooth bends for maximum airflow without drone
  • Up to 30HP increase on stock turbos, even more with upgraded setups
  • Lifetime warranty on defects and fitment
  • 90-day return period
  • Ships in 1 to 2 business days
  • Spot-on fitment
  • Flex section for added durability

Fitment

  • 2021 and up BMW M3 G80
  • 2021 and up BMW M4 G82 and G83
  • 2023 and up BMW M2 G87

Disclaimer

For race use only. This product is not certified for use on public roads and may not comply with local regulations. Always check your local laws before installing.

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: 2030904603

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4.1 ★★★★★
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Gail
Grantham, 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
Grantham, 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
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Reviewed in the United States on April 23, 2026
T
Verified Purchase
Tj
Charlottesville, 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
Natrona Heights, 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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Vonda Kioultzopoulos
Alexandria, 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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