SKU: 11065363876

Active Autowerke Catted Downpipes (GESI G-Sport Cats) - BMW / F8X / S55 / M3 / M4 / M2 Competition

Sale price$1859.00 Regular price$2065.55
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

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Description

Active Autowerke Catted Downpipes (GESI G-Sport Cats) - BMW / F8X / S55 / M3 / M4 / M2 CompetitionFor over 30 years, Active Autowerke has been the one to turn to for high quality BMW performance products. Committed to enhancing the performance of BMWs through the highest quality products is what Active Autowerke is all about. The newest addition to our BMW F87 M2C, F80 M3 and F82 M4 Collection, these F8X catted downpipes are a true testament to our outlook on creating innovative products with performance in mind. Developed for precise fitment on


For over 30 years, Active Autowerke has been the one to turn to for high quality BMW performance products. Committed to enhancing the performance of BMWs through the highest quality products is what Active Autowerke is all about. The newest addition to our BMW F87 M2C, F80 M3 and F82 M4 Collection, these F8X catted downpipes are a true testament to our outlook on creating innovative products with performance in mind. Developed for precise fitment on the F87 M2C, F80 M3 and F82 BMW M4, the difference in performance will be noticeable the moment you leave your driveway!

This variant includes a pair of 4" ultra high flow GESI catalytic converters (Gen 2 Advanced) that will NOT produce a CEL!

The GESI G-Sport High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESI HO-Series Gen 2 Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. GESI proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most "Check Engine Lights". These ultra high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.

The GESI HO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this ultra high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!

Please Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.

NOTE: Federal law prohibits the tampering of an emissions control device. u00a0Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions are not adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.

Features:

  • NO CEL for catalytic efficiency when using this downpipe
  • Quicker turbo spool and response
  • Less restrictive, more free flowing
  • Improved low end and mid range performance as well as higher boost levels
  • GESI EPA registered high flow and fully OBD2 compliant
  • Casted upper stainless steel V-Band for precise fitment
  • Withstands up to 1500F
  • Can reach operational efficiency within 9 seconds of startup
  • Easily bolts-on with no cutting or welding required
  • Accepts OEM O2 sensor heat shield
  • Durable construction from TIG welded 304 stainless steel
  • Precise fitment
  • Ultra high flow 400 cell per square inch catalyst
  • EPA compliant for use on OBD2 vehicles (1996 and newer) except in California
  • 304 stainless steel substrate is furnace braised to the mantle for outstanding durability
  • GESI proprietary precious metal loading technology ensures greatly reduced emissions
  • Ideal for Forced Induction Applications with no loss of HP
  • Both passengers and drivers are safe from harmful emissions and noise
  • Covered by 5 Year / 50,000 Mile Warranty (on shell and tube ends) and 2 year / 25,000 Mile Warranty on the Catalytic core
  • Made in Miami, Florida


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: 11065363876

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Kristi
Bozeman, US
★★★★★ 1
Terrible sheets - absolutely terrible
Color: 02 - Pure White, Size: King
These are thin - so thin that I can see my mattress pad easily through them. They are rough in texture and quite possibly the worst sheets I've ever slept on. I ordered two sets, I'll be returning the second set that is unopened.
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Reviewed in the United States on May 1, 2026
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Amazon Customer
Fort Morgan, US
★★★★★ 5
Bed Sheets
Color: 01 - Linen Beige, Size: Queen
The package was received in very good condition and the sheets were packed in a professional way. The queen size fit my bed very well with large pockets at the corners and strong elastic holding all around. The sheets do seem to be a bit heavier than I expected and were very wrinkled after the first washing. I ironed the pillow cases and they did up well. The material is a bit rougher than I expected, but I have slept very well with them and I am pleased overall.
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Reviewed in the United States on May 29, 2026
K
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K
Bozeman, US
★★★★★ 5
Top quality sheets that are soft, cool, and absolutely worth it
Color: 02 - Pure White, Size: Queen, Color: 02 - Pure White, Size: Queen
Absolutely impressed with the quality of these sheets. I wanted to switch to cotton sheets to get the hotel feel, but have a lot of sensory issues and was worried that they would be scratchy. These sheets are incredibly soft, crisp, and smooth and are not rough at all. They are made with high quality stitching and didn’t have any loose strings. The pillowcases are also thick and heavyweight and are very durable. Some reviews complained about wrinkles, but this will absolutely not be an issue if you lightly steam your sheets after drying. It took 5 minutes and my sheets look so crisp and fresh. They also come with a cloth bag to put leftover pillowcases/bedding in which is so convenient to keep my extra set in. absolutely worth the quality and better than brands like brooklinen and west elm. I paired them with the bedside duvet + washed cotton duvet cover in bright white.
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Reviewed in the United States on April 25, 2026
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Carly
Lowell, US
★★★★★ 5
Natural fibers super soft
Color: 01 - Linen Beige, Size: King
Great quality, very warm. Love the textured and natural fibers! Makes a nice between layer. Natural “undyed” look.
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Reviewed in the United States on May 29, 2026
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Autumn
Draper, US
★★★★★ 5
Great sheets
Color: 01 - Linen Beige, Size: King, Color: 01 - Linen Beige, Size: King
Super cute, cool and comfy
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Reviewed in the United States on May 25, 2026

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