SKU: 27787238304

Competition Series Catless Downpipes 2015-20 M2 Competition/M3/M4 S55 Engine

Sale price$537.75 Regular price$597.50
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Ships within 48 hours · Estimated delivery Sep 8 - Sep 13

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Description

Competition Series Catless Downpipes 2015-20 M2 Competition/M3/M4 S55 EngineIntroducing our new Competition Series Catless Downpipes for your twin turbo S55 engine! Fits 2015 20 M3 M4 and 2020 22 M2 Competition. Key Features: Made in the USA! Manufactured in house. Now available for the 2015 20 M3 M4 and 2020 22 M2 Competition. Higher Max Horsepower Power Curve Higher Intial 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 S55 engine!  Fits 2015-20 M3/M4 and 2020-22 M2 Competition.

Key Features:

  • Made in the USA!  Manufactured in house.
  • Now available for the 2015-20 M3/M4 and 2020-22 M2 Competition.
  • Higher Max Horsepower Power Curve
  • Higher Intial 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
  • Retains factory donut style gasket
  • Mirror polish or brush finish
  • Available with high temperature black thermal coating to reduce underhood temperatures
  • 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. 

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. The factory donut flange design is retained.  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.

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: 27787238304

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4.9 ★★★★★
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Verified Purchase
Brian Durand
Lexington, US
★★★★★ 5
Perfect
Color: Grey
Perfect tire plug kit. Stores great under the seat. Hope I don’t need it but I have it if I do.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
D
Verified Purchase
David G.
Phoenix, US
★★★★★ 5
Not left stranded anymore!
Color: Vivid Orange
I bought two of these tire repair kits to put one in each vehicle. I also bought two new jacks for each vehicle. Generally them jacks that come with your vehicle aren’t no good anyways. I had a flat tire way out in the country and I couldn’t get my tire off, with that cheap wrench. I couldn’t get the car jacked up anyways. left me stranded. Not anymore I got two new four-way lug wrenches two new jacks and a tire, patch kit, and two of them little air compressors that you hook up to your cigarette lighter..
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Reviewed in the United States on May 17, 2026
J
Verified Purchase
Jeffrey Peralta Bencosme
Phoenix, US
★★★★★ 5
Excelente kit, Se sienten premium
Color: Grey
Excelente kit de herramientas de pinches, Cada herramienta se siente de buena calidad a diferencia de otras marcas me gustó este Kit por su precio y hermoso estuche. Lo recomiendo 100%
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
S
Verified Purchase
Steve n Judy
Battle Creek, US
★★★★★ 5
Amazon sell a fine selection of replacement fiberized rubber fiber plugs & cement. Read the reviews.
Color: Vivid Orange
This is the only kit you will ever need at roadside to plug a tire & be on your way. This kit has it all. I'm a retired long haul trucker. This is my preferred plug kit. I have stored one of these in all of my trucks & my wife's SUV. You could spend so much more for other plug kits. But this one works. The price reflects the quality of both the tools & all the other essentials you will ever need. I recommend you buy this one. The money you save can be used elsewhere. Note: Amazon sell a fine selection of replacement fiberized rubber plugs & rubber cement. This is where you don't want to skimp on cheap-O plugs elsewhere. These two items are the most important items in the entire system. Be prepared! Always read the reviews & know the sellers reputation before you purchase things. ///////////////
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Reviewed in the United States on March 17, 2026
P
Verified Purchase
Pamela Smith
Port Orchard, US
★★★★★ 3
Plugs
Color: Grey
The plugs didn’t work it leaked. Needed to buy bigger plugs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026

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