SKU: 25706530494

Competition Series 4" Catless Downpipe for the X5/X6 Series N55 (6 Cylinder) Engine

Sale price$267.75 Regular price$297.50
Save 10%

Pay in installments of $74.38 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 24 - Aug 29

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Competition Series 4" Catless Downpipe for the X5/X6 Series N55 (6 Cylinder) EngineOur Competition Series 4" Downpipes for your 2011 13 X5 X6 35i (E70 E71) and 2014 17 X5 X6 35i (F15 F16). Key Features: Made in the USA! Manufactured in house. Available for the 2011 13 BMW X5 35i (E70) with the N55 Engine. Available for the 2011 13 BMW X6 35i (E71) with the N55 Engine. Available for the 2013 18 BMW X5 35i (F15) with the N55 Engine. Available for the 2014 18 BMW X6 35i (F16) with the N55 Engine. Better throttle response and faster

Our Competition Series 4" Downpipes for your 2011-13 X5/X6 35i (E70/E71) and 2014-17 X5/X6 35i (F15/F16).

Key Features:

  • Made in the USA!  Manufactured in house.
  • Available for the 2011-13 BMW X5 35i (E70) with the N55 Engine.
  • Available for the 2011-13 BMW X6 35i (E71) with the N55 Engine.
  • Available for the 2013-18 BMW X5 35i (F15) with the N55 Engine.
  • Available for the 2014-18 BMW X6 35i (F16) with the N55 Engine.
  • Better throttle response and faster turbo spool up times.
  • Mandrel Bent 4" piping.  Smooth transition to the exhaust system.
  • 100% Stainless Steel Construction
  • Stainless Steel Flex Section
  • 100% TIG welded for better quality welds
  • Precision CNC machined turbocharger V-Band flange.
  • Brush Finish (standard) or optional Polish Finish
  • Available with high temperature Black Thermal Coating to reduce underhood temperatures.
  • Optional - Additional O2 sensor bung for wideband O2 sensors (comes with pre-installed plug)
  • Optional EGT sensor bung for EGT gauges (comes with pre-installed plug)
  • 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 4" Catless Downpipe, more power is unleashed! 

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. From the factory turbo outlet of 3.5", our downpipe expands to a full 4" Piping.  Due to space needed for the catalytic converter, the factory downpipes reduce in size using very short transitions.  Since our catless downpipes delete the catalytic converter, we have more space.  Thus, we use very long transitions. These longer transitions allow the exhaust gas time to smoothly transition from the larger piping to the smaller.  This results in less exhaust turbulence and backpressure which again improves throttle response and increase turbocharger spool times (less turbocharger lag).

The factory downpipe utilizes a flex bellow section that allows the exhaust system to move.  This eliminates undue stress on the exhaust components like the exhaust system, downpipe, turbocharger and exhaust manifold.  Many of our competitors do not feel it is important to keep this.  While you do not see any adverse effects right away, over time, the stresses caused by not having a flex section and having a rigid exhaust system will cause premature wear and tear.  Any stress failures like cracks will form quicker than usual on exhaust manifolds and exhaust components.  Also, without a flex section, the exhaust system cannot properly deflect impact.  Especially on lowered cars, whenever the exhaust system contacts the ground, the entire system gets pushed up.  Without a flex, you can imagine how much stress is put into exhaust components like the exhaust manifold/turbocharger when the exhaust is pushed upwards.  We fully understand that durability of our products is important.  Thus, like BMW, we incorporate a flex section into our downpipe.  Our flex sections are 100% stainless steel (cheap flex sections only have stainless steel center braids and steel caps) to ensure corrosion resistance. 

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 in Brushed Finish.  We also offer a Polished Finish as an option.

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).

Additional O2 Sensor Bung - An additional O2 sensor bung can be added so that you can easily add a wideband O2 sensor and gauges for you to monitor air/fuel ratios. The additional O2 sensor bung will come pre-installed with a plug so that you do not need to run the O2 sensor right away.  This is not required for a normal standard installation.

Optional EGT (Exhaust Gas Temperature) Bung - An additional 1/8" NPT bung can be added so that you can easily add a EGT sensor and gauge. The optional EGT sensor bung will come pre-installed with a plug so that you do not need to run the EGT sensor right away.  This is not required for a normal standard installation.

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: 25706530494

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 5 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Anthony Gagliardi
Whiting, US
★★★★★ 5
Good book
Format: Paperback
Good book
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 28, 2021
T
Verified Purchase
tyrone
Grantham, US
★★★★★ 5
Bought it for me and a friend
Format: Paperback
Excellent Book ! A must read ! TYRONE C .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 15, 2019
C
Verified Purchase
CJ
Omaha, US
★★★★★ 4
Buy it
Format: Paperback
Just finished reading it. It’s a good, easy read.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2019
M
Verified Purchase
MW
Massapequa, US
★★★★★ 5
Quality Book
Format: Paperback
Quality book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 14, 2019
M
Verified Purchase
Michael Burnam-fink
Lake Worth, US
★★★★★ 5
There is a war... for your Mind!
Format: Kindle
"There is a war... for your Mind!" That's the slogan of InfoWars, the incendiary conspiracy news network and nutritional supplement marketing firm. And while Alex Jones is wrong about almost everything, he's right about that. In LikeWar Singer and Brooking ably synthesize a sophisticated picture of information warfare in 2018, drawing from sources as diverse as Taylor Swift, Donald Trump, and ISIS, to argue that the internet has lead to a blurring of lines between consumer, citizen, journalist, activist, and warrior which threatens the foundations of liberal democracy. The tech companies which built these platforms and profited from them must grapple with the politics of their technologies, before we all reap the whirlwind. Computer networks and smart phones connect billions of people, allowing ideas to flow faster than ever before in history. Sometimes, the results can be impressive. The Chiapas Zapatista movement in 1994 was a dial-up and fax version of a network insurgency that managed to bring enough international opprobrium on Mexico that the government blinked, and reached some kind of political accord (Chiapas is complicated). More recently, Eliot Higgins and a team of open source analysts at Bellingcat managed to track down the exact BUK missile system and Russian soldiers responsible for shooting down MH 17 in 2014. But there are a lot of dark sides. When people connect, the emotion that spreads most rapidly is anger. Lies spread five times faster than truth. Musicians can use social networks to directly connect with their fans, and ISIS uses it to connect with alienated Muslim youths worldwide. Social networks sort diverse citizens into filter bubbles of people who think alike. Eliot Higgin's careful open source intelligence has a paranoid fun-house mirror version in the QAnon conspiracy, where Qultist decoders find hidden messages from an alleged 'senior white house source'. And then there is the matter of information war, an area that even now, after years of offensive cyber operations, liberal democracies still don't understand. Hostile propaganda slips into Western news networks and major platforms like Twitter, Facebook, and Instagram are infested with bots. LikeWar can even take a personal toll. Over the course of writing this book, General Michael Flynn went from forward looking full-spectrum commander to head Trumpist conspiracy cheerleader to indicted and plead out felon. Flynn's fall is complex, but it can't be separated from the internet. If the trolls got him, what chance does your idiot cousin stand? The counters, 'citizen truth teams' and senior emissaries to groups vulnerable to recruitment, seem like thin reeds against the coming maelstrom of noise. LikeWar starts with Clausewitz's dictum that war is a continuation of politics by other means, and there are clear links between cyberspace and physical space. Intensity of hashtags impacted the subsequent intensity of Israeli airstrikes during attacks on the Gaza strip. ISIS used propaganda to create an aura of invincibility that outflanked the defenders of Mosul, while Russia denied that its 'little green men' were even in Ukraine. But the difference is that cyberspace is constructed space rather than natural space. The networks are built, maintained, and owned by real corporations and real people. The internet grew from an anarchic specialized scientific network to a major engine of commerce and communicate with little deliberate government oversight. Section 230 absolved American companies of responsibility for policing content, with major carve outs for copyrighted IP and pornography. Yet as concerns over cyberbullying and counter-terrorism rose, major networks adopted digital constitutions that were permissive towards speech and censorious towards erotica. Policing content is and was possible, but always took a back seat to growth and engagement, the guide stars of Silicon Valley. The future is if anything, darker. Advances in machine learning and AI allow ever more realistic bots, computer generated DeepFakes where a politician can be programmed to say anything, and personalized targeting of people with exactly the propaganda they'll believe. There are defensive counters, but if I might draw military analogies, what we saw in 2016 was armored warfare circa 1918: clearly the future, but not yet a mature system. Given the pace of technology, we only have a few years before digital blitzkrieg. I'm extremely online, and I've been following this space for years. I've presented at multiple conferences on this topic, including Governance of Emerging Technologies and Association of Internet Researchers. LikeWar is the book I wish I'd written. Cognizant, forward looking, and deeply researched, it is vital reading for anyone interested in technology or politics. My only reservation is that I wish the sources were better linked in the text, instead of being buried in static endnotes. Maybe the next edition will push an update.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 19, 2018

recommand products