SKU: 27787238304

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

Sale price$537.75 Regular price$597.50
Save 10%

Pay in installments of $149.38 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 14 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Akino
Carnegie, US
★★★★★ 4
Great Suit, Fits Good and Very Comfy
Color: Navy, Size: 44, Color: Navy, Size: 44
I bought the MOGU Suit 2 piece slim fit suit kinda last minute for an event, and honestly I was suprised by how good it came out. The quality is better than I expected for the price. The fabric feels smooth and not cheap or itchy. The fit was pretty good overall. The jacket sits nice on the shoulders and the sleeves lenght was just a little bit longer than I like, but not a big deal. The pants fit slim but not tight, so I could move around without feeling uncomfortable. I think the sizing is mostly true, but if you're between sizes go up one. The stitching was actually clean and neat. I checked the seams because I’ve had suits before where threads be sticking out everywhere, but this one was solid. No loose ends, no weird cuts. Comfort wise, it’s suprisinly good. I wore it for hours and it didn’t feel heavy or rough. The one-button blazer gives it a nice modern look too. Overall, good buy for the money. Not a high-end designer suit, but for the price range it’s really good and looks way more expensive than it is. I’d definetly order again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 5
Nice suit
Color: White, Size: 32
Nice suit, too small for my teenager
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 2, 2026
T
Verified Purchase
Thuhuong N.
Waukegan, US
★★★★★ 5
Comfortable
Color: Black, Size: 30
My son love the fits and colors. Great quality and the very little stretchiness. No wrinkles at all . Feel very comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
C
Verified Purchase
CJ Demas
Draper, US
★★★★★ 1
Just basted together
Color: Orange, Size: 30, Color: Orange, Size: 30
At first, I was super excited and thought it was a fantastic deal. I bought this suit for a work event, and got it a few days early. I tried it on, everything fit well, I loved the fabric, nothing was tight at all but neither was it loose. Then, I wear it to work. I even took a picture before heading off to work, where everything was still perfectly out together and no issues were visible. And then I sit down at work to eat my breakfast, and notice that stitching RIGHT OVER MY CROTCH had come loose and made a hole. Not popped, the stitching was not broken or anything, but just unraveled. Nothing was tight, and sitting down and walking felt normal so I know I didn’t strain the fabric at all. The stitches were just loose, and the thread was all over the place. Luckily I don’t think anyone saw, I was able to keep my legs crossed or cover the problem area strategically with my water jug or bag. But my house is an hour’s drive away from my work, so I couldn’t just go back and change. I had to borrow a stapler and STAPLE THE HOLE SHUT. Yes, lesson learned, I bought several emergency sewing kits that I will stuff in everything I carry with me everywhere in case something like this happens again, but still. It was BRAND NEW. Not only that, but as I was in the restroom stapling my new suit pants back together, I found the issue. The crotch area was just basted together, no backstitch or proper finishing at all. And it continues down the leg, I had to be careful not to bend my legs too much or those seams would also unravel. They already loosened a little bit and risked showing my skin underneath just by walking. I managed to play it off and keep my body posed in such a way that it was unnoticeable, especially with help of the staples, but still! Super embarrassing, especially since I’m in a large training class right now and everyone found out just because I had to ask everyone if they had a sewing kit on them. I was so ready to chock this up as a win, too. Good thing I postponed my review. Sloppy sewing all around really, once I took a moment after getting home to look closer. Some areas are sewn well and finished properly, but others are still only basted shut or the end of the thread wasn’t anchored at all. I’m going to spend a lot of time re-doing the stitches, because I’m too stubborn to send the piece back and I know how to sew better than whatever machine made this anyway so I don’t wanna waste the fabric. Such a disappointment.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2024
D
Verified Purchase
David M Johnson
Houston, US
★★★★★ 5
I can’t believe the quality for the money
Color: Hot Pink, Size: 38
I am a suit designer for a better priced menswear brand. I bought this suit for a “day-glo” party, so the expectation was going to be one wearing to a party. I wasn’t expecting much for the money, but the color filled the bill. When I received it, I couldn’t believe how great the construction and quality were. The jacket is fully lined, contrast interior piping, interior double welt pockets on both sides, and the fit was really exceptional. The pant had fully taped interior seams, pick stitched curtained waistband, split back seam (so you can easily gave it altered if you need), interior front closure button and tab, hook and eye and exterior button. Note: no one mentioned this, but the waistband is discretely adjustable like a rental tux, so enables fit for a wider range of sizes. The jacket runs true to size, but the pants have some flexibility and are easily altered, so buy your jacket size… that would be harder to alter. The only gripe is the buttons are super cheap looking, and white colored (surprised they weren’t dyed to match, given the rest of the quality).. I’ll be changing them out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 14, 2023

recommand products