BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW E90 M3 S65 4.0L

With the heightened popularity of the Turner E9x exhaust, we do not want to limit your choices when it comes to appearance. Pair this ultra lightweight, exotic sounding exhaust with your choice of exhaust tip! Our Turner Motorsport E9X M3 (S65) Titanium 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 both tame and fine tuned. Nobody will suspect your car even has an aftermarket exhaust system, it will sound similar to the factory system but with the perfect hint of exotic character. When you open up the valves, using the supplied valve controller, this exhaust transforms your car into the exotic beast that it is!

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.

This exhaust sports Mandrel bent dual 2.5” Ti22 pipes, with exhaust gases flowing through efficient piping to High flow, valved, Ti22 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,Ti22 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 your need for sound while having the ability to drive through the neighborhood at night 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
Optional 2.5" to 3.5" Exhaust Tips
Features:

Mandrel bent dual 2.5” Ti22 pipe with brushed finish
High flow, valved, titanium mufflers
Accuseal slip fit joints for easy fitment
Utilizes factory exhaust hangers

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.

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

Upgrade your exhaust system with the Downpipe To Cat-Back Reducer.

Engineered for optimal performance and durability, this reducer allows for seamless connection between your downpipe and cat-back exhaust system. Its high-quality construction ensures a tight seal, reducing exhaust leaks and enhancing overall exhaust flow. With easy installation and compatibility with various exhaust systems, this reducer is a must-have for any performance enthusiast.

• Allows for seamless connection between downpipe and cat-back exhaust
• High-quality construction for durability
• Tight seal reduces exhaust leaks
• Enhances overall exhaust flow
• Easy installation and compatibility with various exhaust systems

Achieving precise exhaust fitment can be tricky—especially when the exhaust hanger has room to slide. This movement can cause annoying rattles or even lead to contact with the underbody or rear bumper. The ECS Tuning Exhaust Locking Collar offers a simple and effective fix. Designed to clamp securely around the exhaust hanger, this collar keeps everything firmly in place, eliminating unwanted movement.

Crafted from high-strength 6031 billet aluminum and finished in a sleek black anodized coating, it delivers both durability and corrosion resistance. With this collar in place, your exhaust stays exactly where it should—no rattles, no surprises.

Product Design:

Made from precision machined 6061 aluminum Black anodized finish Stainless steel M5 X 0.8mm hardware Installation & Support:

Install the locking collar around your exhaust hanger, position the hanger in place, and snug the locking collar down in place against the hanger! ECS Exhaust Hanger Locking Collars are available for 10mm and 12mm exhaust hangers. Please measure your hangers before ordering. The 12mm locking collar can be found HERE.

Universal 2.5" inlet to 3.5" outlet exhaust tip. Priced per exhaust tip.

Over the years, it is not uncommon for exhaust tips to be damaged and corroded, becoming a "sore spot" of your BMW. To remedy this unsightly feature, we now offer our very own exhaust tips! Featuring stainless steel construction and a simple, yet sporty design, this exhaust tip will look perfectly at home on almost any model.

Features & Specifications:

Swivel feature for perfect alignment of the exhaust tips in the rear bumper
2.5" Inner Diameter
3.5" Outer Diameter
Brushed Aluminum Finish
Double Wall Construction
Angle Cut Style
Includes Stainless Steel Clamp

Universal 2.5" inlet to 3.5" outlet exhaust tip. Priced per exhaust tip.

Over the years, it is not uncommon for exhaust tips to be damaged and corroded, becoming a "sore spot" of your BMW. To remedy this unsightly feature, we now offer our very own exhaust tips! Featuring stainless steel construction and a simple, yet sporty design, this exhaust tip will look perfectly at home on almost any model.

Features & Specifications:

Swivel feature for perfect alignment of the exhaust tips in the rear bumper
2.5" Inner Diameter
3.5" Outer Diameter
Brushed Aluminum Finish
Double Wall Construction
Angle Cut Style
Includes Stainless Steel Clamp

Universal 2.5" inlet to 3.5" outlet exhaust tip. Priced per exhaust tip.

Over the years, it is not uncommon for exhaust tips to be damaged and corroded, becoming a "sore spot" of your BMW. To remedy this unsightly feature, we now offer our very own exhaust tips! Featuring stainless steel construction and a simple, yet sporty design, this exhaust tip will look perfectly at home on almost any model.

Features & Specifications:

Swivel feature for perfect alignment of the exhaust tips in the rear bumper
2.5" Inner Diameter
3.5" Outer Diameter
Mirror Chrome Finish
Double Wall Construction
Angle Cut Style
Includes Stainless Steel Clamp

Set of 2 universal 2.5" inlet to 3.5" outlet exhaust tips.

Over the years, it is not uncommon for exhaust tips to be damaged and corroded, becoming a "sore spot" of your BMW. To remedy this unsightly feature, we now offer our very own exhaust tips! Featuring stainless steel construction and a simple, yet sporty design, this exhaust tip will look perfectly at home on almost any model.

Features & Specifications:

Swivel feature for perfect alignment of the exhaust tips in the rear bumper
2.5" Inner Diameter
3.5" Outer Diameter
Brushed Aluminum Finish
Double Wall Construction
Angle Cut Style
Includes Stainless Steel Clamp

Dual Tip Wall Slash Cut Exhaust - 3.0 Inlet - 3.5 OD - Stepped Left - Mirror is the perfect upgrade for those looking to enhance their vehicle's aesthetics and performance. Crafted with a stunning mirror finish, this exhaust tip features a sleek slash cut and stepped left design that adds a touch of sophistication to your vehicle. Its double-wall construction ensures durability and a premium look, making it a must-have for any car enthusiast.

• Enhanced Appearance: Mirror finish provides a polished, high-end look.
• Durable Construction: Double-wall design for long-lasting performance.
• Precision Fit: 3.0-inch inlet and 3.5-inch outer diameter for a perfect fit.
• Stylish Design: Slash cut and stepped left design for a unique, aggressive appearance.
• Easy Installation: Designed for straightforward installation on compatible vehicles.