BMW Catback Exhaust Systems for BMW 3 Series E92 (2007-2013)

New to our line of exceptional performance upgrades for your BMW, the Turner Motorsport E9X M3 (S65) Valved Axle-back exhaust system is here to improve your driving experience with hearty exhaust notes and a noticeable bump in performance. With the muffler valves closed, this exhaust is quite unassuming. When you open up the valves, using the supplied valve controller, this exhaust transforms your car, giving your car a menacing growl!

Now, we get it, not everyone can, or wants to delete their factory cats. Whether it be emissions testing or a check engine light, the smell of unfiltered exhaust, the very aggressive sound, or warranty reasons. Whatever the reason, We've got you covered! This exhaust setup leaves all 4 factory cats in place, making it 100% emissions legal for everyone, even California!

This exhaust sports Mandrel bent dual 2.5” 304SS pipes with a brushed finish, with exhaust gases flowing through efficient piping to High flow, valved, stainless steel mufflers. Designed to mount with the factory exhaust hangers, this exhaust is a bolt-on replacement for the OE version. To help reduce the time you spend under the car installing the system, Accuseal slip-fit joints are included to make fitment as easy as possible. The Turner Motorsport full exhaust system includes a High flow, valved, stainless-steel muffler and is available as an Axle Back, Cat-back system, as well as a full Turbo back system.

Give your M3 the dual-purpose exhaust system that satisfies both your neighbors and your need for sound with the Turner Motorsport E9X M3 full exhaust system!

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” 304SS pipe with brushed finish
Turner Engraved Brushed exhaust tips
High flow, valved, stainless steel mufflers
Accuseal slip fit joints for easy fitment
Utilizes factory exhaust hangers

Upgrade your BMW with the Turner Motorsport E9X M3 (S65) Valved Axle-back Exhaust, offering a blend of robust exhaust notes and enhanced performance. This system delivers a menacing growl when the valves are open, providing an aggressive driving experience. Plus, it's emissions legal, retaining all four factory cats, making it ideal for various preferences and regulations.

The exhaust features Mandrel bent dual 2.5” 304SS pipes with a brushed finish, high-flow valved stainless steel mufflers, and easy-fit Accuseal slip-fit joints. The kit includes an axle-back exhaust with X pipe, adapter pipes for factory mid pipes, muffler valve controller kit, and engraved exhaust tips. Enjoy the Turner Motorsport E9X M3 full exhaust system, balancing volume for both your neighbors and your desire for an impactful exhaust.

Key Features:

• Mandrel bent dual 2.5” 304SS pipes with brushed finish
• High-flow, valved, stainless steel mufflers
• Accuseal slip-fit joints for easy fitment
• Retains factory emissions
• Kit includes axle-back exhaust, adapter pipes, muffler valve controller kit, and engraved exhaust tips

Carbon Fiber S65 Intake:

Elevate your S65 engine with the Carbon Fiber S65 Intake from Turner. This gloss carbon fiber intake not only adds a roaring induction noise but also outperforms the factory intake by over 35%. Revel in the improved audible experience, the beauty of carbon fiber in your engine bay, and enhanced engine performance.

The Turner S65 Carbon Intake is designed with a larger cross-sectional area, ensuring more airflow to the engine in high-demand scenarios. The full carbon intake tube connects to a carbon heat shield housing a large cone filter. Tested to outperform the factory intake with over 750CFM, this intake offers benefits like increased throttle response and a unique, stand-out design.

Benefits:

• Unique design for a standout appearance
• Full carbon fiber heat shield
• Improved airflow and engine breathing
• Increased throttle response
• Added induction noise for an exhilarating driving experience

Part Design:

• Designed and engineered in-house using 3D laser scanning and CAD technology
• Hood Inlet Scoop for directing cool air
• Full Carbon Fiber Heat Shield Assembly
• Monstrous 9" cone air filter
• 7"x5" Carbon Fiber Inlet Tube
• Fully compatible with OEM Secondary Air Injection emissions system

Kit Contents:

• Carbon Fiber Heat Shield
• Carbon Fiber Intake Tube
• Plenum Silicone Coupler
• 9" Cone Air Filter
• Installation Hardware

Product Development:

The Turner S65 Intake System undergoes rigorous development, including FARO laser scanning, 3D CAD modeling, in-house prototyping, and extensive testing on a Mustang AWD 500 SE dyno and Superflow SF-750 Flowbench.

A true dual exhaust featuring twin oversized 2.5" exhaust sections, lightweight mufflers, and a rowdy exhaust note.

Prepare to give your 335 the boost it deserves. Our cat-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. ECS's cat-back 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, ECS engineered an exhaust packed with innovative features, compatible with factory and aftermarket downpipes. Experience the perfect blend of performance and everyday usability.

There is something about a cat-back exhaust that is just so good. Being able to unbolt and replace the entire visible exhaust gives you butterflies in your stomach. A fresh new exhaust and just knowing that things are about to get rowdy. The 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
Full exhaust replacement
37% lighter than stock!
Stock cat-back: 78lbs
ECS cat-back: 49lbs
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" mid-pipes and rear section
2.5" free-flowing mufflers for better sound, and performance
Clamps and Hardware for an OEM+ install
Optional 3.5" ECS exhaust tips

Unleash the roar of your N52 engine with the Turner Motorsport E9x N52 Muffler & Resonator Delete Kit. Elevate your driving experience by transforming your exhaust with this cost-effective kit, providing performance gains, a captivating exhaust note, and stunning exhaust tips. Shedding the heavy factory muffler, Turner's T304 stainless steel 3.0" tubing replaces it, delivering a lighter, high-flow solution compatible with the OEM rear valance. Easy to install with hand tools, this muffler delete adds a powerful sound without significant drone, while shaving off about 20lbs from your vehicle. Upgrade your N52 without replacing the entire exhaust system!

Key Features:

• Turner designed Muffler & Resonator Delete for N52 engine
• T304 stainless steel construction with 1.25mm wall thickness
• CNC mandrel-bent 3.0" tubing for optimal exhaust gas routing
• Tig-welded exhaust hangers for direct fitment
• Hand-Tig welded joints for durability
• Stainless steel Accuseal exhaust clamps for a leak-proof seal
• Large radius bends ensure smooth transitions for optimal flow

Kit Includes:

• Y-pipe section
• Tailpipe section
• Dual 3.0" exhaust tips (Black Chrome finish)
• Stainless steel Accuseal exhaust clamps

See and hear the difference on the ECS YouTube page.

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.

Enhance your BMW's performance and sound with the Turner Motorsport N54 Valved Catback Exhaust. This exhaust system delivers a dual-purpose experience, offering a subdued note with the muffler valves closed, maintaining a near-factory sound. Open the valves with the included controller, and unleash a menacing growl, transforming your driving experience. Crafted with mandrel-bent dual 2.5" 304SS pipes and a high-flow valved stainless steel muffler, this system is a bolt-on replacement for the OE version, ensuring easy fitment with Accuseal slip-fit joints. Elevate your 335i's exhaust with the Turner Motorsport E9X 335i full exhaust system, available as Axle Back, Cat-back, or Turbo back.

Key Features:

• Dual 2.5" 304SS pipes with brushed finish
• Valved stainless steel muffler for dual-sound experience
• Accuseal slip-fit joints for easy fitment
• Turner Engraved Polished exhaust tips
• Utilizes factory exhaust hangers for straightforward installation

Kit Includes:

• Turner Mid Pipes for factory catted mid pipes
• Turner Valved Exhaust
• Muffler Valve Controller Kit
• Turner Engraved Exhaust Tips
• Gaskets and Nuts