SKU: 89436685118

Sports Series High Flow Catted Downpipe for 2023+ XM S68 Engine

Sale price$1122.75 Regular price$1247.50
Save 10%

Pay in installments of $311.88 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 21 - Aug 26

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Sports Series High Flow Catted Downpipe for 2023+ XM S68 EngineIntroducing our new Sports Series High Flow Catted Downpipes for your twin turbo S68 engine! Fits 2023+ XM (G09) Key Features: Made in the USA! Manufactured in house. Now available for the 2023+ BMW XM (G09) S68 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"

Introducing our new Sports Series High Flow Catted Downpipes for your twin turbo S68 engine!  Fits 2023+ XM (G09)

Key Features:

  • Made in the USA!  Manufactured in house.
  • Now available for the 2023+ BMW XM (G09) S68 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.
  • 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 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.

The BMW XM (G09) has 2 primary catalytic converters and 2 secondary catalytic converters for a total of 4 catalytic converters. Our Sports Series High Flow Metallic Catted Downpipe replaces the primary catalytic converter with our high flow metallic catalytic converter and deletes the secondary ones.

Our Sport 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: 89436685118

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 11 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
cindy
Birmingham, US
★★★★★ 5
Perfect for cracked heals ♥️
Color: Cheetah, Size: Regular, Color: Cheetah, Size: Regular
These are thick not cheaply made, has a nice texture inside the heal area which I love. I wear them at night after I apply Aquaphor to my heels & while sleeping they are very comfortable. I slipped these guys on & my heels are healing so much faster no more cracked heels for me. 😃 I highly recommend them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
K
Verified Purchase
Korine
Massapequa, US
★★★★★ 4
These socks have saved my heels!
Color: Fuzzy Slate Gray, Size: Regular
I really love these socks and how they help my heels to feel. I tend to get large cracks on my heels, and wearing these while I sleep during the summer has saved me a lot of pain. One thing this has disappointed me a bit has been some unraveling of the threads around the top and bottom edges. Doesn't seem to matter how I trim them, the next morning when I wake up there is another hanging thread. Maybe it was just a glitch in the finishing of the batch of socks that I received. I would give them a second chance...this certainly isn't a deal breaker.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
S
Verified Purchase
Stella Rosa
Lowell, US
★★★★★ 5
They work!
Color: Fuzzy Blue, Size: Regular
The ZenToes Moisturizing Fuzzy Sleep Socks have been a wonderful addition to my nightly self-care routine. Infused with Vitamin E, olive oil, and jojoba seed oil, these socks are designed to soften and hydrate dry, cracked heels, offering both comfort and skincare benefits. The regular size in blue fits perfectly and adds a soothing touch to my bedtime. One of the features I appreciate most is the intense moisturization these socks provide. The infusion of Vitamin E, olive oil, and jojoba seed oil delivers deep hydration to my feet, effectively softening and healing dry, cracked heels. After just a few nights of wearing these socks, I noticed a significant improvement in the texture and smoothness of my skin. My feet feel much softer and more comfortable, which is a relief after long days on my feet. The fuzzy, cozy design of the socks is another standout feature. They are incredibly soft and comfortable, providing a warm and snug fit that’s perfect for sleep. The plush material feels luxurious against the skin, making it a pleasure to wear them overnight. This added comfort enhances the overall experience, making it easier to stick to a nightly moisturizing routine. The design is practical and thoughtful. The socks fit snugly without being too tight, ensuring they stay in place throughout the night. The regular size is perfect for my feet, and they accommodate a range of foot sizes comfortably. The blue color adds a touch of style and fun, making the socks both functional and visually appealing. The socks are easy to care for, which is a significant advantage. They can be hand-washed or machine-washed on a gentle cycle, and they retain their softness and moisturizing properties even after multiple washes. This durability ensures that the socks continue to provide effective hydration and comfort over time, making them a worthwhile investment for foot care. The moisturizing effect lasts long after I take the socks off in the morning. My feet remain hydrated and smooth throughout the day, reducing the need for additional foot creams or lotions. This lasting effect is a testament to the quality and effectiveness of the ingredients used in the socks. Overall, the ZenToes Moisturizing Fuzzy Sleep Socks have exceeded my expectations. Their combination of deep moisturization, cozy design, practical fit, and easy care makes them an essential addition to any skincare routine. The socks have significantly improved the condition of my feet, providing effective relief for dry, cracked heels and ensuring lasting softness and hydration. I highly recommend these moisturizing socks to anyone looking for a comfortable and effective solution for foot care. They have become an indispensable part of my nightly routine, ensuring that I wake up with softer, healthier feet every day.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 29, 2024
C
Verified Purchase
Char
Lexington, US
★★★★★ 3
THESE THINGS SHED BAD!!!!!!!!!
Color: Pink Strawberries, Size: Regular
These things shed like you wouldn't believe. They're all over my furniture, my floor, my clothes. I'm finding little pink pieces of sock fluff everywhere and it's annoying. I don't think they did that until after I washed them. So if they don't shed on you right away, just wait, it'll most definitely happen. I returned because I won't where them again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
C
Verified Purchase
Channing Motley
Boise, US
★★★★★ 5
Keeping the crusty heels at bay!
Color: Cotton Gray, Size: Regular
I deal with chronic dry heels that crack if left unmanaged. I bought these in hopes that when I do soak and scrub my heels that I can keep the cracking at bay. These have been a godsend. I wear them every night and my heels are nice and soft. I plan on purchasing more. A couple of things I have noticed, if I wear these during the day, the bottom of my feet do seem to sweat and there is some slipping. I have only washed these are directed (hand washing) and you will want to after a couple washes because it could give a sweaty feet smell. Overall, I highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026

recommand products