The oxygen sensor is vital to the performance and drivability of your car. The engine computer relies on data from the sensor to make adjustments in engine efficiency and performance. When your BMW oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing -- resulting in poor performance, poor gas mileage, and increased pollution. Make sure your BMW engine performs as it should, and doesn't use more fuel than it needs to, by simply changing your oxygen sensor today. There is no lifespan on O2 sensors but there are several fault codes that indicate a failed sensor (O2 monitoring, cat efficiency, O2 heating circuit, O2 readiness, and others). The O2 sensor is heated and has a self-calibration feature so once you get the codes or feel performance has suffered, a new sensor is a good starting point to get you back to peak performance. Bosch's Oxygen sensors are high quality and will give you the the longest and best performance for the price.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

This item fits the following BMW Chassis:
E82,E90,E92,E93,F30,F34

Fits BMW Engines including:
N55 - up to 08/2013

Elevate your BMW experience with the Turner Motorsport E90 E92 M3 Titanium Valved Axle-Back Exhaust. This cutting-edge system offers exotic exhaust notes, weight reduction, and a noticeable performance boost. The muffler valves provide a tame, factory-like sound with a hint of exotic character when closed, and transform your car into an exotic beast when opened, thanks to the supplied valve controller.

For those who prefer to keep their factory cats, this exhaust setup is the ideal choice. It leaves all 4 factory cats in place, ensuring 100% emissions legality. The Mandrel bent dual 2.5” Ti22 pipes and high-flow, valved Titanium mufflers provide efficient gas flow and a dual-purpose exhaust system that satisfies both neighbors and performance enthusiasts.

Kit Includes:

• Turner Axle back Exhaust with X pipe
• Turner Adapter pipes for Factory Mid Pipes
• Turner Muffler Valve Controller Kit
• Turner Engraved Exhaust Tips

Features:

• Mandrel bent dual 2.5” Ti22 pipe
• Turner Engraved Brushed exhaust tips
• High flow, valved, Titanium mufflers
• Accuseal slip-fit joints for easy fitment
• Utilizes factory exhaust hangers

Upgrade your M3 with the Turner Motorsport E90 E92 M3 Titanium Valved Axle-Back Exhaust for a perfect blend of style and performance.

ECS Tuning N54/N55 Cat-Back Exhaust for BMW E9X Take your 335i or 335xi to the next level with a high-performance cat-back exhaust designed to invigorate your driving experience. Constructed from premium brushed stainless steel, this ECS cat-back exhaust isn’t just about cutting weight—it’s about delivering unrestrained performance with a refined, yet powerful tone. Expect a thrilling soundtrack that underscores every shift and acceleration, giving you that much-needed connection to the road.

This exhaust system is crafted with balance in mind, providing a potent sound without the excessive drone that disrupts highway cruising. Designed for the N54 and N55 engines, it integrates seamlessly with both stock and aftermarket downpipes. Featuring twin 2.5” mandrel-bent pipes and turbo-style mufflers, this exhaust offers increased flow, weight savings, and a deep, exhilarating tone that complements the BMW’s high-output turbocharged engine.

Why Upgrade?

Better Sound and Flow: A dual 2.5” mid-pipe setup leads back to lightweight, turbo-style mufflers. Designed for unrestricted flow, the exhaust enhances horsepower, torque, and throttle response. Signature Tips: Complete with dual black chrome 3.5” tips, this system not only sounds incredible but looks the part, too. Weight Savings: Shedding 37% of the weight, this exhaust replaces the heavy factory cat-back and lightens your load to support a sportier feel. Improved Performance: Reduced backpressure for smoother, more responsive acceleration. Precision Engineering

Design Technology: Using FARO ARM laser scanning and SolidWorks 3D CAD, this system is built for an exact fit. High-Quality Materials: T304 stainless steel construction with 1.25mm wall thickness, TIG-welded for durability. OEM Fitment: Stainless steel hangers are welded in OE locations for a seamless, factory-quality installation. Adjustability: Strategic slip joints make adjustments easy, so you achieve the ideal alignment for your setup. What’s Included?

Dual 2.5” mid-pipes and rear exhaust section High-flow turbo-style mufflers Complete mounting hardware and clamps Black chrome 3.5” exhaust tips Turner Motorsport Performance Ignition Coils

Boosted Performance: Enhanced spark energy translates to a stronger and more reliable combustion cycle. Direct Fitment: Engineered for seamless installation with your BMW’s ignition system. Distinctive Turner Blue: Adds a stylish touch to your engine bay, making it look as good as it performs. Benefits at a Glance

Enhanced Exhaust Sound: Deeper, more aggressive note with minimized cabin drone. Lighter Build: 37% lighter than stock for added agility. Free Ignition Coils: Improved spark for consistent performance and fuel efficiency. Performance Ready: Fully compatible with both OEM and aftermarket setups. Turn heads, enjoy the ride, and make the most out of your BMW’s power with this ECS Tuning N54/N55 Cat-Back Exhaust and Turner Ignition Coil combo—built for enthusiasts who demand the best in performance and style.

Lightweight axle-back featuring an exotic exhaust note. Designed for minimal drone at driving speed and maximum volume when desired.

Prepare to give your 335 the boost it deserves. Our axle-back exhaust was made to redefine the driving experience of your E9x. Manufactured from premium brushed stainless steel, it is not just about reducing weight; it's about enhancing performance with unrestricted airflow. And the sound? It's a symphony of power and precision, carefully crafted for an unforgettable soundtrack. The sound experience is more than you could ask for. With the freedom of exhaust flow and tuned exhaust note, we are very excited to get these exhausts on 335's everywhere, don't wait!

In crafting the 335 exhaust systems, the primary focus is achieving the perfect balance of sound and comfort. We understand the desire for a thrilling exhaust note without the annoyance of highway drone or interior vibrations. This ECS exhaust for your 335 incorporates this balance, offering a strategic blend of sportiness and practicality. Drawing from their extensive experience, particularly with N54 and N55 E chassis, they have engineered an exhaust packed with innovative features, compatible with factory and aftermarket downpipes. Experience the perfect blend of performance and everyday usability.

Prepare for a fresh new exhaust, things are about to get rowdy. This ECS exhaust features twin 2.5" brushed pipes with flanges that bolt directly to your factory and aftermarket downpipes. The dual 2.5" mid-pipes make their way toward the rear axle with smooth transitions for effortless exhaust flow. Replacing the large suitcase muffler is a pair of 2.5" turbo-style mufflers that shed weight and give a signature sound. The turbo-style muffler features an inner design that refines the exhaust note to perfection. An extraordinary mixture of both volume and frequency. Paired with the 2.5" mufflers is your choice of 3.5" exhaust tips that give your rear diffuser a sporty look that shouts performance.

Features and Benefits:

Street/Motorsport inspiration
Enhanced exhaust note
33% lighter than stock!
Stock axle-back: 51lbs
ECS axle-back: 34lbs
Reduction in back pressure for increased throttle response, TQ, and HP
Dual 3.5" fitted exhaust tips
Part Design:

In-house designed and engineered using FARO ARM laser scanning technology and SolidWorks 3D CAD modeling for precision fitment.
T304 Stainless Material in a natural finish - 1.25mm wall thickness, back purged, and TIG-welded throughout
Dual 2.5" Stainless Steel Mandrel Bent Tubing
T304 Stainless Steel 12mm barbed exhaust hangers TIG-Welded in OE locations for precise fitment.​
Strategically placed slip joints provide the most adjustability to obtain perfect fitment
Kit Contents:

Dual 2.5" rear section and adapters
2.5" free-flowing mufflers for better sound, and performance
Clamps and Hardware for an OEM+ install
Optional 3.5" ECS exhaust tips

Transform Your BMW's Exhaust System with ECS UNIVERSAL Exhaust Tips - 4.0" Titanium - Burnt Finish - Set of Four

• Elevates the appearance of your BMW's exhaust system
• Crafted from durable titanium for long-lasting performance
• Features a stylish burnt finish for a unique look
• Comes in a set of four for a complete upgrade

Upgrade the look of your BMW's exhaust system with the ECS UNIVERSAL Exhaust Tips - 4.0" Titanium - Burnt Finish - Set of Four. Made from high-quality titanium, these exhaust tips are built to last and provide a touch of elegance to your vehicle. The burnt finish adds a distinct visual appeal, making your BMW stand out from the crowd. With four tips included in the set, you can achieve a comprehensive upgrade for your exhaust system.

Special pricing! Free ground shipping! The Supersprint rear muffler for the E90 N52 models (325i, 328i, 330i) produces an enhanced version of the classic BMW inline-6 exhaust note. With a slightly raspy, ripping growl this exhaust produces a sound instantly recognizeable to any BMW enthusiast. This performance muffler replaces the stock muted part and opens up the exhaust for you to enjoy. This muffler is used with a Supersprint section 2 exhaust, most commonly with the resonator delete option and a set of connecting pipes to fit to the stock secondary cat section. That makes a it a full E90 cat-back exhaust.

Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long lasting construction and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preferance. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Most Supersprint systems are built with larger diameter piping to improve exhaust flow which helps the engine do less work and make more horsepower! Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation!

section:rear muffler

connects to:Supersprint section 2

tip style:dual 80mm round polished

material:T304 stainless steel

requires:Supersprint section 2, Supersprint connecting pipes

E90 Supersprint Sound

This item fits the following BMWs:
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon

Free ground shipping! 

This Supersprint center section will delete the secondary silencer/resonator in the stock exhaust and fit with the Supersprint sport rear muffler. The front of this section is clamped to the stock secondary cats via a set of connecting pipes. By eliminating the resonator, and matched to the rear muffler, more engine sound can be heard. And with less restriction more torque and horsepower can be released.

Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long lasting construction and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preferance. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Most Supersprint systems are built with larger diameter piping to improve exhaust flow which helps the engine do less work and make more horsepower! Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation!

section:section 2 straight pipes (resonator delete)

connects to:stock cat section; Supersprint rear muffler

material:T304 stainless steel

requires:Supersprint connecting pipes, Supersprint rear muffler

This item fits the following BMWs:
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon

True to form, Dinan has developed this Free Flow stainless exhaust to increasing flow by reducing back pressure, resulting in more power. Best of all, it has a great tone that is aggressive when you want it to be, but pleasant and civilized under normal driving conditions. Constructed from stainless steel for the quality and performance you'd expect from your BMW.

• +6 HP / +5 lb/ft
• Hemholtz chamber eliminates drone
• Corrosion resistant 20-gauge 304 stainless steel muffler
• Quad 3.5" laser engraved exhaust tips
• Louder, sportier sound
• Simple bolt-in installation
• Worth 3 points toward your Dinan badge

For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification while retaining a focus on balanced performance that preserves the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty. Dinan believes so fully in their “total package” approach that once your car has been fitted with enough of their parts, they celebrate your conversion from stock to Dinan with an exclusive trunk badge, displayed proudly by BMW enthusiasts everywhere.

This product fits the following BMWs:
2008-2011 E90 M3