MAD US S55 Catted Downpipes M2C M3 M4 W/ Flex Section
SKU: 35124471071

MAD US S55 Catted Downpipes M2C M3 M4 W/ Flex Section

Sale price$230.85 Regular price$256.50
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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Description

MAD US S55 Catted Downpipes M2C M3 M4 W/ Flex SectionIntroducing the Mad s55 catted Downpipe, the perfect upgrade for BMW enthusiasts looking to enhance their vehicle's performance and exhaust sound. Crafted from premium quality 304 stainless steel, this downpipe is built to withstand extreme temperatures and harsh driving conditions. The smooth transition of our piping design ensures maximum exhaust flow, which results in increased horsepower, torque, and throttle response. The Mad s55 Catted Downpipe

Introducing the Mad s55 catted Downpipe, the perfect upgrade for BMW enthusiasts looking to enhance their vehicle's performance and exhaust sound.

Crafted from premium quality 304 stainless steel, this downpipe is built to withstand extreme temperatures and harsh driving conditions. The smooth transition of our piping design ensures maximum exhaust flow, which results in increased horsepower, torque, and throttle response.

The Mad s55 Catted Downpipe is also equipped with high-flow 200 cell catalytic converters, which help to reduce harmful emissions while maintaining optimal performance levels. The catalytic converters are engineered to deliver maximum flow and minimal back pressure, which results in a noticeable improvement in engine sound and overall driving experience.

The downpipe is designed to bolt-on directly to the stock exhaust system and does not require any cutting or welding, making installation quick and hassle-free. The Mad s55 Catted Downpipe is also compatible with aftermarket exhaust systems, providing you with endless customization options to suit your preferences.

Don't settle for stock performance - upgrade to the Mad S55 200 Cell Race Catted Downpipes and experience the true potential of your BMW.

Race Use only 
Features: 

200CEL Euro 5 Cats
Compatible with right-hand drive and left-hand drive vehicles
Smooth bends for maximum airflow without any drone
Up to 30HP increase on the stock turbos, even more on upgraded turbos
Lifetime warranty on defects and fitment
Spot on fitment
Flex section

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: 35124471071

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4.3 ★★★★★
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Product Reviews
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Verified Purchase
OldMan
Battle Creek, US
★★★★★ 4
Really filters the cabin air
Size: 1.9" x 9.9" x 11.4"
K&N filters are always a cut above. Can’t say the same for service/support after the sale.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026
R
Verified Purchase
Richard B
Boise, US
★★★★★ 5
quick and easy fit
Size: 1.9" x 9.9" x 11.4"
Instructions made it a very quick and easy fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
B
Verified Purchase
Bobbi
West Palm Beach, US
★★★★★ 5
IMPRESSED!
Item Package Quantity: 1, Item Package Quantity: 1
I bought this for my Honda civic 2017 lx 1.5 and it is a perfect fit. I didn’t realize how important it is to change it. Let me tell you if you are thinking about buying this, it’s your sign not JUST because of health which is vital and first and foremost but the PRICE! At any oil change or auto shop they will charge no less than 50$ and I’ve seen higher. I will continue to buy this brand. I will update in my next 5,000 miles. 8.00$ or 50$+ and the quality is EXACTLY the same, your choice.
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Reviewed in the United States on April 3, 2026
A
Verified Purchase
Amazon Customer
Dallas, US
★★★★★ 5
2016 Honda civic ex
Item Package Quantity: 1
Fits perfectly in my 2016 Honda Civic EX. Installation was quick and easy, and the air coming from the vents smells much cleaner now. It seems to trap dust and pollen well and is a good replacement for the OEM filter.
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Reviewed in the United States on January 11, 2026
Q
Verified Purchase
Quilly
Fort Morgan, US
★★★★★ 5
Do it yourself and save big bucks
Item Package Quantity: 1
Perfect fit and reasonable price. Easy to replace in my 2019 Honda CR-V. It takes about 10 minutes to replace. Don't let a dealership rip you off.
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Reviewed in the United States on May 14, 2026

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