SKU: 62691084425

Competition Series Catless Downpipes 2018-23 M5/M8 S63M Engine

Sale price$717.75 Regular price$797.50
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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16

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Description

Competition Series Catless Downpipes 2018-23 M5/M8 S63M EngineIntroducing our new Competition Series Catless Downpipes for your twin turbo S63M engine! Fits 2018 23 M5 (F90) & 2018 23 M8 (F92 F93). Key Features: Made in the USA! Manufactured in house. Now available for the 2018+ BMW F90 M5 & F92 F93 M8 S63M Engines! 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

Introducing our new Competition Series Catless Downpipes for your twin turbo S63M engine!  Fits 2018-23 M5 (F90) & 2018-23 M8 (F92/F93).

Key Features:

  • Made in the USA!  Manufactured in house.
  • Now available for the 2018+ BMW F90 M5 & F92/F93 M8 S63M Engines!
  • 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 exhaust systems.
  • 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 Catless Downpipe, more power is unleashed!  You will feel the difference instantly. 

The M5 (F90) and M8 (F92/F93) has 2 primary catalytic converters and 2 secondary catalytic converters for a total of 4 catalytic converters.  Our Competition Series Catless Downpipes replace both the primary and secondary sections.

Our Competition Series Catless 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.  The factory turbocharger turbine housing utilizes a 3.5" V-Band flange which we have duplicated, and 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.

OPF Compatibility (EU & Asia Spec)

European Spec & Asia Spec cars feature the Otto Particulate Filter (OPF) system as part of their emissions equipment.  We now offer downpipes that are compatible with the OPF system and allows you to retain full function of it.  

OPTIONS

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: 62691084425

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Diana
Lake Worth, US
★★★★★ 5
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Color: Black
Husband loved it works great
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Reviewed in the United States on March 1, 2026
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Renee L.
Alexandria, US
★★★★★ 5
Great for men’s table side
Color: Black
I purchased this for my husband for a table side catch all it works really great and if he has anything metal as in keys, it will keep them off of the wooden nightstand. Great size all you need.
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Reviewed in the United States on November 13, 2024
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Syndicate
Battle Creek, US
★★★★★ 5
Great Value for the Money
Color: Black
I absolutely love this valet tray. I looked for one for a number of weeks on Amazon before finally purchasing one. I couldn't be happier. The quality is top notch for the price, it looks really nice on my nightstand and is exceptionally functional. I absolutely love this thing!
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Reviewed in the United States on March 28, 2024
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Amazon Customer
Alexandria, US
★★★★★ 5
Nice Tray to Keep Organized
Color: Black
I like this small organizer to keep my personal go-to items on my dresser. I like that there is a place to keep my cell phone and notches for the cord. I also like the curved compartment for my sunglasses.
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Reviewed in the United States on October 14, 2024
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Michelle Renee Shaffar
Houston, US
★★★★★ 5
Great for use atop the bedside table!
Very nice! I bought this for my father for his birthday, and he really liked the gift! It's a nice little place for him to keep all of his essentials together on the bedside table. No more losing his watch, keys, wallet, etc. or knocking them off the table!
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Reviewed in the United States on April 12, 2026

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