Enhance power and driving excitement in your BMW 318ti or Z3's 4 or 6-cylinder engine with the proven performer from Supersprint – a free-flowing muffler that serves as an excellent foundation for vehicle modification.

• Unleashes the engine's distinctive sound
• Compatible with 318ti or Z3's 4 or 6-cylinder engines
• Connects to stock or aftermarket center section
• Includes all hangers and hardware for easy installation
• 36-month unlimited mileage warranty for peace of mind
• Supersprint's 60+ years of expertise in BMW exhausts
• Extensive testing with real race teams for optimal feedback
• Dyno testing, high-quality materials, and race team feedback ensure performance
• Offers a perfect balance of quality, performance, and a stellar reputation

Transform your Z3M driving experience with our Turner Performance Axle-Back Exhaust. Say goodbye to the bulky, uninspiring stock exhaust and embrace the power and style your Z3M truly deserves.

Featured on the ECS Tuning YouTube Channel! - CLICK HERE FOR SOUND CLIPS -

Engineered to perfection, your new exhaust system sheds a remarkable 42 pounds, providing a substantial 60% reduction in weight compared to the factory setup. Freeing up the weight is great, but the real magic lies in its upgraded mufflers, featuring a straight-through design that minimizes backpressure while delivering a captivating, aggressive exhaust note with minimal rasp. Lighter and freer-flowing, this exhaust system is the ultimate embodiment of performance. Not to overlook even the smallest detail, our engineers were able to keep the OEM angle of the exhaust tips in the rear valance (angled 5 degrees upward).

Why did we choose to make an exhaust upgrade for Z3M? When shopping for performance BMWs tailored for autocross or other motorsports endeavors, buyers often gravitate toward the revered M3 lineup. Initially, attention is drawn to the E36 and E46 M3 models, which feature epic motors such as the S52 and S54. However, among the motorsport vehicles, the Z3M tends to be overshadowed in BMW's performance lineup. True enthusiasts like yourself know that the Z3M not only shares the 50/50 weight distribution and rigid chassis like the other M cars, but it also comes loaded with the epic motors sought after in the E36 and E46 M3. If you are fortunate enough to own a Z3M, you're already in possession of one of the legendary S52 or S54 motors! Cherish your Z3M and enlighten the community about just how awesome these vehicles are with a great-looking and sounding exhaust!

Curious about upgrading your Z3's exhaust but not entirely convinced? Let's look into the installation process of your new lightweight performance exhaust. It's a breeze. Simply lift/your car up, support your mufflers, and unbolt the factory axle-back. Once the bulky factory exhaust is out of the picture, your new Turner exhaust seamlessly bolts onto the factory mid pipes and hangers. If you have any questions or hiccups during install we have a helpful installation guide found below!

Design:

Turner 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
Features and Benefits:

Street/Motorsport inspiration
60% lighter than stock!
Stock axle-back: 69 lbs
Turner axle-back: 27 lbs
Compatible with factory mid-pipes
Reduction in back pressure for increased throttle response, TQ, and HP
Quad exit with fitted exhaust tips
Kit Contents:

2.5" Rear exhaust section
Full 2.5" lightweight free-flowing muffler sections for better sound, performance, and weight savings.
Clamps and Hardware for an OEM+ install
Optional Turner Exhaust tips - 2.5" Inlet, Dual 3.0" Outlets
Optional muffler hanger removal pliers
Installation:

- Click HERE for Installation Instructions -

Product Development:

Our Turner Z3M Axle-Back was designed, engineered, tested and quality inspected by our Research and Development team at Turner. Nothing but the highest level of precision and quality through leading-edge product development technology including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer and rigorous long term product testing.

Engineered for vehicles with vacuum-actuated exhaust valves, the ECS Remote Vacuum Exhaust Valve Control Kit puts you in complete command of your exhaust sound. This fully standalone system lets you open or close your valves instantly—no reliance on factory controls, drive modes, or complicated wiring.

At its heart is a self-contained vacuum pump and dedicated control module, operating entirely independent of your vehicle’s electronics. The result is broad compatibility with both OEM and aftermarket exhaust systems, allowing for the freedom to switch between aggressive performance sounds and a refined, quiet tone at the touch of a button.

Kit Includes:

Standalone Vacuum Pump – Delivers consistent vacuum for reliable valve function

Wiring Harness Options – Choose from a reversible cigarette lighter power adapter or a length of wire for custom hardwiring

High-Quality Vacuum Hose – Durable, leak-resistant construction for long-lasting performance

Remote Controllers – Compact fobs for easy operation from inside or outside the vehicle

Features:

Instant open/close control for exhaust valves

Operates completely independent of factory electronics

Universal compatibility with vacuum-actuated valve systems

Ideal for both aftermarket and factory exhaust setups

From stealthy early-morning starts to unleashing your exhaust’s full roar on demand, the ECS Remote Vacuum Exhaust Valve Control Kit gives you total control over your car’s voice—whenever and wherever you want it.

Experience Enhanced Exhaust Sound Control with Vibrant Performance Bottle-Style Resonators

Vibrant Performance introduces their Bottle-Style resonators engineered with an authentic straight-through perforated core enveloped in premium multi-layer sound suppression materials. These resonators adeptly mitigate exhaust noise while maintaining unrestricted exhaust flow. Crafted from high-quality T304 stainless steel, Vibrant Performance offers a range of applications, ensuring a perfect fit for various vehicle models.

Upgrade your exhaust system with the 2.5" Stainless Steel 3-Bolt Flange - Priced Each. This high-quality flange is designed to provide a durable and reliable connection for your exhaust components. Made from stainless steel, it offers corrosion resistance and longevity, ensuring a lasting performance. Whether you're repairing or customizing your exhaust system, this flange is an essential component for a secure fit.

• Durable stainless steel construction
• Corrosion-resistant for long-lasting performance
• Provides a reliable connection for exhaust components
• Suitable for repair or customization of exhaust systems

Bad oxygen sensors can cause check engine lights and poor fuel mileage. Replace your faulty sensor with this high quality Bosch sensor to turn off your check engine light and restore fuel mileage.

This is the pre-cat oxygen sensor for cylinders 1-3 for BMW E46 M3. Bosch # 13 949. This is a OEM replacement part for BMW part # 11781743994.

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 BMWs:
2001-2006 E46 BMW M3 M3 convertible
2001-2002 Z3 BMW M Roadster M Coupe

Free ground shipping! 

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!

NOTE: Supersprint engineers and manufactures complete exhaust systems. This part was designed to be used with the rest of the Supersprint system on this car but may be used on its own. Contact us for more details.