SKU: 64338567903

Competition Series Catless Secondary Downpipes 2023+ 760i xDrive S68 Engine

Sale price$357.75 Regular price$397.50
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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14

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Description

Competition Series Catless Secondary Downpipes 2023+ 760i xDrive S68 EngineIntroducing our Competition Series Secondary Downpipes for your twin turbo S68 engine! Fits 2023+ BMW 760i xDrive. Key Features: Made in the USA! Manufactured in house. Now available for the 2023+ BMW 760i xDrive S68 Engines! Does not set off the Check Engine Light (CEL). Higher Max Horsepower Power Curve Higher Initial Torque Curve. Torque curve hits faster and higher and longer. Better throttle response and faster turbo spool up times. Mandrel Bent

Introducing our Competition Series Secondary Downpipes for your twin turbo S68 engine!  Fits 2023+ BMW 760i xDrive.

Key Features:

  • Made in the USA!  Manufactured in house.
  • Now available for the 2023+ BMW 760i xDrive S68 Engines!
  • Does not set off the Check Engine Light (CEL).
  • Higher Max Horsepower Power Curve
  • Higher Initial Torque Curve.  Torque curve hits faster and higher and longer.
  • Better throttle response and faster turbo spool up times.
  • Mandrel Bent 3" piping.  Smooth transition to the exhaust system.
  • 100% Stainless Steel Construction
  • 100% TIG welded for better quality welds
  • Precision CNC machined turbocharger V-Band flange.
  • Mirror polish or brush finish
  • Available with high temperature black thermal coating to reduce underhood temperatures.
  • Retains factory slip on style connection.
  • Compatible with the factory or aftermarket secondary downpipes.
  • Track tested durability.
  • Includes all hardware for complete installation.
  • Limited Lifetime Warranty.

Restrictions in the exhaust system robs horsepower and torque especially on turbocharged cars.  Thus, removing as much exhaust flow restrictions will increase horsepower and torque significantly.  The factory catalytic converter found in the factory downpipe is a big culprit of this and is a major exhaust flow restriction.  The factory catalytic converter is made up of catalyst material formed into "honeycomb" weaves.  Exhaust gas must pass through these tiny "honeycomb" weaves on their way to the exhaust system thus causing a major exhaust flow restriction.  It also causes turbulence after the catalytic converter which causes the exhaust flow to slow down (which increases restriction).  By replacing the factory downpipe/catalytic converter with our Competition Series Downpipe, more power is unleashed!  You will feel the difference instantly. 

Our Competition Series Downpipes is constructed out of 100% 304 grade stainless steel and utilize mandrel bent piping. They are 100% TIG welded by our in-house fabricators and built in the USA.  Factory Style flanges are CNC machined cut out of billet 304 stainless steel.  Stainless Steel CNC machined O2 sensor and laser cut brackets are TIG welded using stainless steel rods.  The O2 sensor is positioned at the factory location.  100% bolt on. 

Our downpipes are designed to fit perfectly with either the factory exhaust system or your aftermarket exhaust system.  There are no compatibility issues whatsoever.  The downpipes will come by default with brushed finish.

The S68 engine has 2 primary catalytic converters and 2 secondary catalytic converters for a total of 4 catalytic converters.  Our Competition Series Secondary Downpipes replace just the secondary section You can retain the factory primary catalytic converter or aftermarket primary section.  Will match up to factory or aftermarket exhaust systems.  The secondary downpipes are after the secondary o2 sensor that monitors the catalytic converter so changing it will not set off a check engine light (CEL).

Ceramic Thermal Coating - The purpose of ceramic coating downpipes is to keep heat from the exhaust gases inside the downpipe from radiating out. This keeps underhood temperatures lower and less heat absorption by nearby parts/surfaces.  Another added benefit is that by keeping in heat (energy) in the exhaust gases inside the downpipe, exhaust flow velocities stay up, resulting in lower backpressure. The ceramic coating also adds additional corrosion resistance. We utilize the best ceramic coating possible. Our thermal coating can resist up to 2000F of heat. It is available in black only (all the other colors cannot withstand the high levels of heat).

CAUTIONThis product is intended for OFF ROAD COMPETITION USE ONLY. Not legal for use on pollution controlled vehicles upon public road/highways. THIS PRODUCT IS FOR SALE FOR ALL 49 STATES EXCLUDING CALIFORNIA.  In addition to vehicle use verification, a Vehicle Compliance Waiver needs to be signed.

THIS ITEM IS NOT FOR SALE, INSTALLATION, OR USE ON LICENSED VEHILES IN THE STATE OF CALIFORNIA. 

The item is for sale for international customers without restriction.

Please contact us at [email protected] or call us at (626) 334-6609

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: 64338567903

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4.4 ★★★★★
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Verified Purchase
Joe
Port Orchard, US
★★★★★ 5
Efficient long lasting. Great Value
Style: CF10735 Classic
These filters (my second one) has lasted me over two years with a little maintenance in between, (removing from time to time to vacuum and shake out the bigger debris.) They do a great job of keeping the cabin air really clean and fresh. 1) Over designed and built (Good thing) installed without effort. 2) Fit and finish is perfect for my 2016 Genesis G80 3) Carbon filter works well but after about six months it no longer absorbs orders, This is excepted especially when I have not swapped it out for over two years. 4) Great value and honestly I should be replacing these cabin filters out ever six months for efficiency and order control. Note: When I decided to replace it the filter held up structurally as the day I installed it. The charcoal beads where all intact as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 30, 2026
R
Verified Purchase
RadcoCorp.
Dallas, US
★★★★★ 5
Better than OEM, AC is so fresh now!
Style: CF10374 Classic, Style: CF10374 Classic
YEEEEEEAHHHHH! This went straight from the mailman's hand to my 2010 Tacoma. -Fits better than OEM and Replacements! -AC smells so fresh now! -Easy installation without any complications. -Has a foam gasket around the filter that makes it fit like a glove, thight and secure! -Very Well Made and quality materials. Won't be returning this one, will actually buy it for the rest of my cars! ⭐️⭐️⭐️⭐️⭐️
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
A
Verified Purchase
Amazon Customer
Bozeman, US
★★★★★ 5
**Perfect Fit for My 2008 Acura TL**
**Perfect Fit for My 2008 Acura TL** I bought this cabin air filter as a replacement for my 2008 Acura TL, and it fit perfectly 👌. Installation was quick and easy—no issues at all. The build quality feels solid, and the activated carbon is a nice bonus for helping reduce odors and improve air quality inside the cabin. For the price, it's a great value compared to dealership options. Highly recommend this if you're looking for a simple and reliable replacement!
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Reviewed in the United States on August 5, 2025
K
Verified Purchase
Kenneth F.
Waukegan, US
★★★★★ 5
Just what my vehicle's A/C, heat system needed ..
Good fit, and quality. Easy to change. You might be surprised how changing the cabin air filter can improve the airflow in your vehicles A/C, and heat system.
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Reviewed in the United States on April 13, 2026
G
Verified Purchase
gb147
Grantham, US
★★★★★ 5
Perfect fit, Easy install, Better than taking it to a dealer.
This filter fits perfectly and easily. Unlike the dealer-installed filter (which I assume was an OEM filter but maybe not), it has arrows that indicate which side and orientation should be facing outward. The dealer-installed one does not have this and, as you can see from the photo, it was installed incorrectly. It should not be folded in on the sides. The old filter in the photo is after about 20K miles if that is a useful reference for you. Also, if you watch any YouTube videos, you will see a reference to releasing a plunger as the first step in releasing the glovebox door. For my 2018 Honda Accord Touring, there was no plunger, and that was confusing to me. If you don't see one, just go to the next step -- squeezing in the top, back corners of the glove box to fold it down. After that, everything goes like in the videos. Getting back to this filter -- it seems like it's better quality than the dealer-installed one. Shipping was fast. I would buy it again but, because this only takes a couple of minutes, next time I would do both the cabin and engine air filter at the same time so you might save a little money buying the combo set. Again, a very easy install and you don't risk having a dealer doing it incorrectly.
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Reviewed in the United States on September 13, 2025

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