SKU: 47623813746

Active Autowerke Downpipes W/ GESI Cat - BMW / S58 / F97 / F98 / X3M / X4M (11-070)

Sale price$1282.08 Regular price$1424.53
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 27 - Sep 1

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Description

Active Autowerke Downpipes W/ GESI Cat - BMW / S58 / F97 / F98 / X3M / X4M (11-070)The Active Autowerke Downpipes with GESI Catalytic Converters are engineered specifically for the BMW S58 engine found in F97 F98 X3M and X4M models. Designed to reduce flow restriction inherent in OEM downpipes, these 3" stainless steel pipes improve turbo spool and durability while maintaining emissions compliance outside California. 3" diameter stainless steel piping with stainless flex joints for durability Down to 70mm OEM exhaust system

The Active Autowerke Downpipes with GESI Catalytic Converters are engineered specifically for the BMW S58 engine found in F97/F98 X3M and X4M models. Designed to reduce flow restriction inherent in OEM downpipes, these 3" stainless steel pipes improve turbo spool and durability while maintaining emissions compliance outside California.

  • 3" diameter stainless steel piping with stainless flex joints for durability
  • Down to 70mm OEM exhaust system connection; no diameter reduction below stock size
  • Includes a pair of 4.5" high flow GESI catalytic converters producing no check engine light (CEL)
  • GESI UHO catalytic converters feature full 304 stainless steel construction and proprietary precious metal loading technology
  • EPA registered, OBD2 compliant for 1996 and newer vehicles (not CARB legal in California)
  • Catalytic converters rated for 500-850 horsepower applications, withstand up to 15008F, operational efficiency within 9 seconds of startup
  • Cast stainless steel V-band flanges ensure precise fitment and easy bolt-on installation (2013+ models, no cutting or welding required)
  • Constructed from TIG welded 304 stainless steel for long-lasting strength
  • Covered by 5-year/50,000 mile warranty on shell and tube ends; 2-year/25,000 mile warranty on catalyst core
  • Manufactured in Miami, Florida with quality control standards

Note: These catalytic converters are not legal for use in California due to state regulations (CVC Sections 27156 and 38391). Federal law permits aftermarket emissions parts if emissions standards are not adversely affected. The GESI cat meets or exceeds EPA standards but is not CARB-approved.

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: 47623813746

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4.7 ★★★★★
Based on 11 reviews
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Riggs
Carnegie, US
★★★★★ 5
Fits my 2026 civic sport perfect!
Size: AF151
No issues, fitment is perfect. Great quality for an excellent price. Dealer wanted like $24 for a basic one. Nah I'm good I'll just go on Amazon and get it for $8. Took 30 seconds from start to finish can't get any easier.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
A
Verified Purchase
Ant Farmer 1
Lowell, US
★★★★★ 5
Fits well and installs easily.
Size: AF997
This filter looked about the same as the OEM filter. It installed in about a minute. The quality appeared to be fine. It was protected in a cardboard box. It fit my 2014 Subaru Outback perfectly. I just installed it an hour ago so I don’t have any long term observations about longevity or effectiveness. I can’t see any reason why it would not work as well as the original, it seemed identical.
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Reviewed in the United States on May 29, 2026
N
Verified Purchase
Nicholas K
Charlottesville, US
★★★★★ 5
Great filter
Size: AF259
This fit my Mazda CX-5 perfectly. I'm happy with the seal and quality. Great price. I will certainly reorder for my next replacement.
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Reviewed in the United States on May 19, 2026
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 5
Great fit and quality
Size: AF113
Not a complicated product, but after going to 2 different auto parts stores and this not being in stock, Amazon to the rescue. Arrived the next day and the quality is definitely on par with “store brand” ones from retailers. Definitely cheaper as well.
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Reviewed in the United States on April 23, 2026
A
Verified Purchase
AC
Phoenix, US
★★★★★ 5
Fit my 2014 Accord perfectly
Size: AF476
Seems to be the same quality as OEM. Fit perfectly. Easy to install.
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Reviewed in the United States on April 24, 2026

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