SKU: 46443705642

Sport Series High Flow Catted Downpipes for 2016-18 M550i/750i N63 Engine

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Description

Sport Series High Flow Catted Downpipes for 2016-18 M550i/750i N63 EngineIntroducing our Sport Series High Flow Catted Downpipes for your twin turbo N63 engine! Fits 2016 18 M550i 750i (G30 G11) Key Features: Made in the USA! Manufactured in house. Now available for the 2016 18 M550i 750i S63 Engines! High Flow 200 cell metallic catalytic converter 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

Introducing our Sport Series High Flow Catted Downpipes for your twin turbo N63 engine!  Fits 2016-18 M550i/750i (G30/G11)

Key Features:

  • Made in the USA!  Manufactured in house.
  • Now available for the 2016-18 M550i/750i S63 Engines!
  • High Flow 200 cell metallic catalytic converter 
  • 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.
  • 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 Sports Series High Flow Metallic Catted Downpipe, more power is unleashed! 

We use a 200 cell metallic core for our Sports Series High Flow Catted Downpipes. By having less cells per square inch, these individual "cells" are bigger in size thus allowing exhaust gas to pass through it more easily. Thus, the lower the cell count, the higher the flow. Higher flow = more power, faster turbo spool up (less turbocharger lag) and better throttle response. Bottom line, faster. The benefits of a metallic catalytic converter vs a ceramic like the factory is that it can take higher temperatures and is more durable (last longer). They are also lighter than their ceramic counterparts.

Our Sports Series High Flow Catted 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.

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: 46443705642

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Antonia Thomas
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★★★★★ 4
The Perfect Conclusion!
Format: Kindle
I was a little skeptical starting this one cause I’m not usually a novella person. BIG HOWEVER! This was definitely needed because I was already starting to miss the OG Briar kids! I’m not gonna go into too much detail since this is a spoiler free account, but I’ll just give you my thoughts on each novella: Logan and Grace: this one had me kicking my feet, giggling, and SQUEALING! It was so cute from start to finish and of course there was a little spiciness🤭 no complaints about this one! Dean and Allie: In the words of Jacob Black- “SHE’S NOT SURE WHAT SHE WANTS” and it irritated the hell out of me🙄 She was absolutely infuriating in this one and couldn’t wait for this part to be over🥲 Tucker and Sabrina: There’s started off a bit flat if I’m honest. I mean, they were just kind of. . .boring. Which is a shame cause they’re my favorites out of the whole series!😭 Graham and Hannah: Of course the OGs! Loved their portion of the book, until a certain part happened😐 I feel like Garrett didn’t handle it well, but he made up for it in the end. But this one was also so sweet because it showed how supportive they are to each other in their different careers. This book wasn’t overly spicy because it was more so about life after the college world experience, which is fine. There was still a fair amount of spice and I loved what I was given!😅 Last thing I’ll say about this book: I did not expect to laugh as hard as I did reading this! I mean I was legitimately CACKLING through this entire book!😂 Overall, I really enjoyed this one and loved seeing what our favorite characters were up to after graduation.
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Reviewed in the United States on February 2, 2025
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Kids RN
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★★★★★ 5
Beautiful story, exquisitely told
Format: Kindle
This is one of my favorite love stories. There is much to love, but I think the best thing is how the author allows the reader to discover the characters' feelings. I am always upset when an author clobbers me over the head with what a character thinks or feels. I like when I get to feel it right along with the character. That was expertly accomplished here. Great read!
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Reviewed in the United States on June 6, 2026
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Matt Summers
Cuba, US
★★★★★ 4
Great summer read
Format: Audiobook
Much anticipated book! Love this author🧡 I am stingy with a 5 star review and this came close. Live a story with yearning!!!
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Reviewed in the United States on May 20, 2026
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Annie
Dallas, US
★★★★★ 5
Five Stars, No Notes
Format: Kindle
I love Carley Fortune’s books, but I think this one might just be edging out the top spot in my ranking list. Her writing is lyrical and engaging and just wraps you right in and has you grinning like an idiot the entire way through. This was a really quick read for me because I didn’t want to put it down. I am also not usually someone who highlights quotes in books, but the language was truly so creative and beautiful in some parts I couldn’t resist saving them for later. I still am not over it. Our Perfect Storm is a childhood friends to lovers romance where you truly fall in love with the characters and are rooting for them throughout the book. There is so much yearning and heartache and I totally ate this up. Frankie is a chaotic spitfire of a character and I found her to be incredibly relatable, and loved how Carley makes her character lovable because of her rough edges, not in spite of it. George is so sweet and patient and pines after Frankie, totally making you swoon. You want to scream at them the entire book to just get together already. The tropical vacation with a “bucket list” setting gave me almost PWMOV vibes and I loved it. George really throws himself into helping Frankie’s grief, and it’s a very healing process to witness. I also feel as though the unpredictable and chaotic dynamics of human relationships were well portrayed in this story, not only through the intimate relationships but with the extended families as well. I don’t want to share spoilers, but I really appreciated where Frankie and her mom landed in the end, it felt like a real turning point for her. The ending is truly beautiful and feels like a breath of fresh air. This book just fully wrapped me up in nostalgia and cozy magic and made me smile through the end. I would highly recommend for any Carley Fortune lovers or anyone looking for a feel good read. Some of my favorite quotes: “You’re this unstoppable force, and you make me feel invincible, too. I feel more alive when I’m with you.” “There are no ugly parts. Some of them are louder than others. Some might be vicious when provoked.” His eyes drill into mine. “But they’re all you. They’re all worthy of love.” “My love for you is fundamental to who I am. It’s deep in my bones. A sonnet written in the marrow.”
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Reviewed in the United States on May 24, 2026
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Kindle Customer
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★★★★★ 5
Lovely
Format: Kindle
Lovely and sweet. He falls first & the yearning is perfect. Slow burn, but sexy. Both main characters were relatable and likable.
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