BMW Catback Exhaust Systems

We set out to amplify the F80/F82 with a proper exhaust system. To accomplish this goal, our engineers at Turner increased flow and delivered an exhaust system that captures the full unrestricted sound of the twin turbo inline-6 S55 engine. The increase in flow was gained from dual 2.5" stainless exhaust pipes that feed into one of the best designed mufflers on the market. Our in-house engineers specifically designed the muffler with flow in mind to ensure that even with the exhaust valves closed, our Turner muffler flows better and sounds better than the stock muffler. The best part of the catback exhaust is the capability to control just how aggressive you want to your exhaust to sound, far beyond the point that the factory exhaust is able to perform. All of this plus the direct fitment and straight forward installation leads to the Turner Stainless exhaust being the clear answer in your mission to find the best exhaust for your S55 powered F80 or F82.

Transform the whole dynamic of your M3 or M4 with added performance, increased flow and not to mention the absolutely wicked sound you get from the upgraded Turner Performance Catback!

Part Design:

Turner In-house designed and engineered using FARO ARM laser scanning technology and SolidWorks 3D CAD modeling for precision fitment.
304SS pipe Material in a natural finish
2.5"OD mandrel bent tubing
Barbed exhaust hangers Tig-Welded in OE locations for precise fitment.​
Strategically placed slip joints provide the most adjustability to obtain perfect fitment
Valved Muffler:
Optimized for superior flow over OEM
Utilizes factory valve control
Kit Contents:

Full 304SS Valved muffler utilizing oem style exhaust valves
High-Flow middle muffler section for better sound, performance and weight savings.
Dual 2.5" 304SS Mid-pipes
Clamps, gaskets and Hardware for an OEM+ install
Brushed Turner Exhaust tips - 2.5" Inlet, 4.0" Outlet

Elevate your E30’s performance and protection with our exclusive Turner Motorsport bundle, featuring the all-new E30 325 Performance Cat-Back Exhaust System paired with a complimentary E30 Chassis Mount Skid Plate Kit. Engineered to enhance power, durability, and style, this package is a must-have upgrade for any BMW E30 enthusiast.

E30 325 Performance Cat-Back Exhaust System

Introducing a bold advancement in E30 exhaust design. The Turner Motorsport E30 Exhaust for the 325 merges aggressive aesthetics with unmatched performance for a true transformation on the road. Equipped with a Helmholtz resonator, this exhaust is lightweight, compact, and precision-tuned to minimize drone. It delivers a powerful, resonant exhaust note without the intrusive hum.

Installation is quick and straightforward, thanks to factory-style flanges that align seamlessly with your existing converter. The angled, slash-cut tips add a stylish, performance-oriented edge while remaining period-correct for the E30. From an upgraded center mount to enhanced pipe diameters, every component is thoughtfully engineered to deliver peak performance and visual appeal.

Sound clips! Hear this exhaust in action:

Key Features:

Optimized Flow: Dual 2.25" stainless steel pipes offer smooth airflow and increased efficiency. Refined Sound: A Helmholtz resonator reduces drone, delivering a rich, low-pitched exhaust tone. Effortless Installation: Designed with factory-matching flanges and hanger locations for a quick, hassle-free install. Aggressive Styling: Custom slash-cut exhaust tips give a nod to the E30’s legacy while adding a bold look. Specifications:

Material: Premium 304 stainless steel Weight: Lightweight 28.5 lbs Design: Integrated X-pipe and larger diameter tubing for an aggressive exhaust tone and improved exhaust flow Fitment: Retains factory emissions compliance and utilizes stock hanger points, with an added support hanger for enhanced stability. E30 Chassis Mount Skid Plate Kit

Protect your E30 from unexpected hazards with the Turner Motorsport Chassis Mount Skid Plate Kit—a robust solution designed to defend your engine against potential damage from debris and rough roads. This skid plate isn’t just protection; it’s a chassis reinforcement system that doubles as a splash guard and provides added front subframe stiffness, improving overall vehicle rigidity.

Built to last, this skid plate features 1.5” diameter A36 steel supports that mount directly to the chassis rails and a tubular “halo” brace that surrounds and shields the oil pan. Whether you’re navigating city streets or taking your E30 to the track, this skid plate offers unparalleled protection and stability.

Key Features:

Enhanced Protection: Shields engine components from road debris, minimizing the risk of oil pan damage. Improved Chassis Stiffness: Functions as a front subframe brace, reinforcing stability and rigidity. 24v Swap Compatible: Compatible with both standard and 24v-swapped E30s. Complete Kit: Includes all necessary hardware for an easy, secure installation. Specifications:

Material: 1/8" thick 5052 aluminum skid plate with tubular A36 steel supports Design: Precision laser-etched for optimized engine bay airflow, tubular brace for durable oil pan protection Fitment: Works with standard M20 engines (325i, IS, E, ES) and E30s with 24v swaps using the E34 525 M50 oil pan Upgrade your E30 with Turner’s high-performance cat-back exhaust and safeguard your engine with our durable skid plate, all in one unbeatable package. Crafted in the USA, each piece is built with the quality and precision Turner Motorsport is known for, making this a powerhouse combo that blends heritage, performance, and protection into one ultimate E30 enhancement.

New to our line of exceptional performance upgrades for your BMW, the 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
Turner Engraved Exhaust Tips
Features:

Mandrel bent dual 2.5” Ti22 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

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