BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW 4 Series F32 (2014+)

Still have the factory exhaust fitted to your B58? You don't know what your missing. Free up lost performance with a new full cat-back exhaust complete with factory valve control!

The B58 engine earned the badge "Worlds 10 Best Engines" four times as of 2023. In 2016 the single turbo straight six found its way to the leaderboards for the first time and followed up in 2017, 2019, and 2020 staying on the charts as one of the best engines in the WORLD.

Our new cat-back exhaust is designed to take out restrictions, maximize flow and give your B58 a signature exhaust note that will excite you on every drive. From the factory your vehicle comes equipped with a combination of three mufflers and resonators that do a great job of silencing the exhaust and restricting flow. There is a center muffler(one restriction), rear section resonator(two restrictions) and a bulky muffler(three restrictions!). With all of those stop gates how do you expect to get the maximum performance out of your vehicle, you simply cannot do so. Lucky for our in-house engineers you no longer have to deal with the quiet and limiting factory exhaust.

To create a cat-back exhaust for this incredible engine the changes happen right after the downpipe. We replaced the factory oval pipe with our full 3.0" T304 stainless steel piping. The true 3.0" exhaust makes its way through the center and rear of the car without the center muffler or resonator to keep flow to a maximum! With smooth mandrel bent transitions our exhaust passes perfectly under the rear subframe for a factory equivalent fit. Positioned in the rear of the car is our signature B58 muffler with beautiful inlet and outlet piping that creates the perfect exhaust tuning. Featuring relief cut slip joints and fabricated sheet metal brackets the exhaust can be fully adjusted and mounted seamlessly in the factory locations. Dual 4.0" exhaust tips are optioned to fill out the open space in the rear diffuser and complete the rear profile of the vehicle.

Part 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
Full 3.0" 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
Controlled by factory valves
Reduction in back pressure for increased throttle response, TQ and HP
Dual exit with fitted exhaust tips
Kit Contents:

3.0" front exhaust section (direct fitment to the factory downpipe)
Full 3.0" light weight free-flowing middle muffler sections for better sound, performance and weight savings.
Valved Rear muffler
Clamps and Hardware for an OEM+ install
Optional Turner Exhaust tips - 3.0" Inlet, 4.0" Outlet
Product Development:

Our F Chassis B58 Valved Catback 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.

B58 Engine Design:

BMW's first mass produced turbo charged engine, the N54 took the world by storm opening a whole can of worms in the car industry and aftermarket community. A new era of motors were created with the new B58 roughly 9 years after the N54 had been tested and pushed to its limits along with its single turbo companion, the N55. In 2015 the modular engine family was created and the B58 was released into the wild to set a new standard in performance and reliability. Turning back to their roots the B58 engine features a closed-deck engine design similar to the N54 that allows a massive increased in boost pressure capacity and heightened compression ratio. Thought the B58 is similar in weight and size to its predecessor, the new modular engine makes considerably more power right off the rip. With the new block design heat management has been upgraded to reduce the affects of heat cycling to slow the rate of cooling and prevent engine components from failing due to rapid cooling. Just like the N55 the B58 comes fitted with dual vanos, valvetronic and a single twin scroll turbo. Just 8 years experience of this motor we can all agree that the B58 looks like it could be the future of motors to come. This tunable engine has been tested up to 1000hp with the stock block and hosts a platform for the community to break into a whole new class of attainable "supercar killers".

Presenting our Turner Motorsport Performance Cat-Back Exhaust, tailor-made for your 330 or 430. Immerse yourself in an enhanced driving adventure as this meticulously engineered exhaust takes your B46/B48-equipped car to exhilarating new heights. With an unwavering commitment to performance and quality, the Turner exhaust is crafted to unlock the full potential of your F chassis.

Experience a symphony of performance and sound, coupled with a visual upgrade through the quad exit exhaust tips that amplify the motorsport essence of your vehicle. Elevate your driving encounters with the Turner Motorsport cat-back exhaust - unleash the power, reveal the glorious sound, and capture attention wherever you go.

Incorporating their distinctive design principles, this exhaust produces a commanding, deep tone, revealing the bold personality of the revolutionary line of 4-cylinder turbo engines. Leveraging the factory valve control, the Turner cat-back ensures an exciting sound during acceleration, seamlessly blending the high-performance sound with daily driving convenience. Crafted from 1.25mm wall T304 stainless steel, Turner's exhaust boasts superior durability, corrosion resistance, and aesthetic appeal.

Designed with the customer in mind, the installation is a breeze, featuring a straightforward bolt-on process using factory slip joints and mounting locations. Your exhaust system includes all the necessary clamps and hardware for a hassle-free installation. Upgrade your 330/430 with the Turner Motorsport cat-back and let every drive become a statement of power and style.

Upgrading the sound:

Our exhaust allows you to turn up the volume and let the B46/B48 boast its smooth and hearty exhaust tone. Let's be honest, what's the point of owning a B48 if you're not going to upgrade the exhaust? Our signature muffler design allows you to transfer the exhaust valve from your factory system directly onto your new Turner system. The Turner exhaust signature muffler design allows for two flow paths that change both tone and volume. With the vehicle in eco or comfort mode, the valves remain closed, with the closed valves the exhaust system allows the gasses to flow through the muffler toning down the volume and giving a more refined exhaust note. While in driving modes sport or sport+ the valve opens and the flow path changes to a "straight flow path" essentially turning into a straight-piped exhaust for the least amount of restriction and the most amount of B48 sound!

How the cat-back is designed:

To create a cat-back exhaust for this incredible vehicle the upgrade happens right at the downpipe. Turner replaced the factory components with oversized 3.0" T304 stainless steel piping. The true 3.0" exhaust makes its way through the center and rear of the car without the center muffler or resonator to keep the flow to a maximum! With smooth mandrel bent transitions, this exhaust passes perfectly under the rear subframe for a factory equivalent fit. Positioned in the rear of the car is Turner's signature B46/B48 muffler with a beautiful inlet and outlet piping that creates the perfect exhaust tuning. Featuring relief cut slip joints and fabricated sheet metal brackets the exhaust can be fully adjusted and mounted seamlessly in the factory locations. Dual 3.0" exhaust tips are optioned to fill out the open space in the rear diffuser and complete the rear profile of the vehicle.

Features and Benefits:

Street/Motorsport inspiration
Controlled by factory valves
Pronounced dual 3.0" Exhaust tip options
17 lb weight savings (Factory - 55lbs, Turner 38lbs)
Kit Contents:

3.0" front exhaust section
Full 3.0" lightweight free-flowing midsection for better sound, performance, and weight savings.
Valved rear muffler
Valve extension harness
Clamps and hardware for an OEM+ install
Optional dual 3.0" exhaust tips
Optional OBD plug-in
Part 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
Full 3.0" 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
Optional OBD Plug-In:

The factory-valved muffler is not only controlled by different driving modes like comfort, sport, and sport plus but the RPM also plays into whether the valves are opened or closed. If you are looking for a solution to define whether your exhaust valve is fully opened or closed then you should look into adding an OBD plug-in that features Bluetooth valve control from your phone. During testing, the best way to choose whether your valve is open or closed for your sound preference is through an OBD-linked application on your phone. Included in this kit are optional OBD extensions to not only gain diagnostic function but also gain the ability to influence widgets on your vehicle such as valve position on your valved muffler.

The aFe MACH Force-Xp cat-back exhaust system for the BMW N55 delivers uncompromising quality and performance.  3"- 2-1/2" mandrel bent 304 stainless steel tubing and high flow transverse muffler offers optimum exhaust flow and incorporates a factory style exhaust valve to control the exhaust note at all throttle inputs. The system utilizes the factory valve motor and factory performance modes. Closed, it directs the exhaust through the high flow muffler for a smooth, tuned exhaust note. When opened, the exhaust bypasses the muffler to unleash the full performance potential and aggressive note from your N55. Large 4" diameter polished stainless steel exhaust tips come with a laser-etched aFe POWER logo for a stylish finish.

DETAILS:

• +12 HP and +10 lbs. x ft. Torque max gains
• 3" - 2-1/2" mandrel bent, 304 stainless steel for maximum flow
• High flow, transverse muffler with a high-temp powder-coated black finish
• Dual 4" diameter polished stainless steel exhaust tips
• Includes factory style exhaust valve (using factory motor, not included)
• Optional resonator delete pipe is available PN 49-36622
• 100% hand TIG-welded for strength and durability

Performance Gains:
Data coming soon!

304 Stainless Steel Construction:
3" into 2-1/2" mandrel bent 304 stainless steel tubing for maximum performance, corrosion resistance, durability and overall breath-taking appearance.

High-Flow Performance Muffler:
Featuring a corrosion resistant high temp. metallic black powder-coat this high flow, transverse stainless steel muffler improves sound and performance gains across the power band.

Dual 4" Polished Tips:
Finishing off this system are dual 4" diameter, polished stainless steel exhaust tips. The tips come with a laser-etched aFe power logo for a custom, stylish finish.

Exhaust Valve:
Incorporated is a factory style exhaust valve which uses the factory exhaust valve motor (not included). The valve helps regulate, direct and control the flow of exhaust gases by opening, closing, or partially obstructing passageways depending on throttle position and factory performance mode for maximum performance.

Resonator Delete Pipe:
An optional resonator delete pipe is compatible with this exhaust system (not included, sold separately) aFe part number: 49-36622 (No cutting or fabrication required).

TIG-Welded:
100% TIG-Welded by certified craftsmen for race proven strength and durability.

Hassle-Free Installation:
This exhaust system is designed to be a true bolt on system with no cutting or modifications required. Quality hardware is included for a hassle-free installation.

Note:
Will NOT fit xDrive (AWD) Models.

Emissions Disclaimer:
This product does not require a CARB EO# (CARB Aftermarket Parts Verification Guidelines).

All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.

The aFe MACH Force-Xp cat-back exhaust system for the BMW N55 exceeds your quality and performance expectations.  3"- 2-1/2" mandrel bent 304 stainless steel tubing and high flow transverse muffler offers maximum exhaust flow and incorporates a factory style exhaust valve to control the exhaust note. The valve utilizes the factory valve motor and factory performance modes. When closed, it directs the exhaust through the high flow muffler for a smooth, tuned exhaust note. When opened, the exhaust is allowed to bypass the muffler and unleash the sound and performance of your N55. Large 4" diameter gloss black stainless steel exhaust tips come with a laser-etched aFe POWER logo for a stylish finish.

DETAILS:

• +12 HP and +10 lbs. x ft. Torque max gains
• 3" - 2-1/2" mandrel bent, 304 stainless steel for maximum flow
• High flow, transverse muffler with a high-temp powder-coated black finish
• Dual 4" diameter gloss black stainless steel exhaust tips
• Includes factory style exhaust valve (using factory motor, not included)
• Optional resonator delete pipe is available PN 49-36622
• 100% hand TIG-welded for strength and durability

Performance Gains:
Data coming soon!

304 Stainless Steel Construction:
3" into 2-1/2" mandrel bent 304 stainless steel tubing for maximum performance, corrosion resistance, durability and overall breath-taking appearance.

High-Flow Performance Muffler:
Featuring a corrosion resistant high temp. metallic black powder-coat this high flow, transverse stainless steel muffler improves sound and performance gains across the power band.

Dual 4" Gloss Black Tips:
Finishing off this system are dual 4" diameter, gloss black, stainless steel exhaust tips. The tips come with a laser-etched aFe power logo for a custom, stylish finish.

Exhaust Valve:
Incorporated is a factory style exhaust valve which uses the factory exhaust valve motor (not included). The valve helps regulate, direct and control the flow of exhaust gases by opening, closing, or partially obstructing passageways depending on throttle position and factory performance mode for maximum performance.

Resonator Delete Pipe:
An optional resonator delete pipe is compatible with this exhaust system (not included, sold separately) aFe part number: 49-36622 (No cutting or fabrication required).

TIG-Welded:
100% TIG-Welded by certified craftsmen for race proven strength and durability.

Hassle-Free Installation:
This exhaust system is designed to be a true bolt on system with no cutting or modifications required. Quality hardware is included for a hassle-free installation.

Note:
Will NOT fit xDrive (AWD) Models

Emissions Disclaimer:
This product does not require a CARB EO# (CARB Aftermarket Parts Verification Guidelines).

All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.

Presenting our Turner Motorsport Performance Cat-Back Exhaust, tailor-made for your 4-cylinder F Chassis. Immerse yourself in an enhanced driving adventure as this meticulously engineered exhaust takes your B48-equipped car to exhilarating new heights. With an unwavering commitment to performance and quality, the Turner exhaust is crafted to unlock the full potential of your F chassis.

Experience a symphony of performance and sound, coupled with a visual upgrade through the quad exit exhaust tips that amplify the motorsport essence of your vehicle. Elevate your driving encounters with the Turner Motorsport axle-back exhaust - unleash the power, reveal the glorious sound, and capture attention wherever you go.

Incorporating their distinctive design principles, this exhaust produces a commanding, deep tone, revealing the bold personality of the revolutionary line of 4-cylinder turbo engines. Leveraging the factory valve control, the Turner axle-back ensures an exciting sound during acceleration, seamlessly blending the high-performance sound with daily driving convenience. Crafted from 1.25mm wall T304 stainless steel, Turner's exhaust boasts superior durability, corrosion resistance, and aesthetic appeal.

Designed with the customer in mind, the installation is a breeze, featuring a straight-forward slip joint and mounting locations. Your exhaust system includes all the necessary clamps and hardware for a hassle-free installation. Upgrade your f chassis with the Turner Motorsport axle-back and let every drive become a statement of power and style.

Upgrading the sound:

This exhaust allows you to turn up the volume and let the 4 cylinder boast its smooth and hearty exhaust tone. Let's be honest, what's the point of owning a f chassis if you're not going to upgrade the exhaust? Turner's signature muffler design allows you to transfer the exhaust valve from your factory system directly onto your new Turner system. The Turner exhaust signature muffler design allows for two flow paths that change both tone and volume. With the vehicle in eco or comfort mode, the valves remain closed, with the closed valves the exhaust system allows the gasses to flow through the muffler toning down the volume and giving a more refined exhaust note. While in driving modes sport or sport+ the valve opens and the flow path changes to a "straight flow path" essentially turning into a straight-piped exhaust for the least amount of restriction and the most amount of B48 sound!

Features and Benefits:

Street/Motorsport inspiration
Controlled by factory valves
Pronounced dual 3.0" Exhaust tip options
Kit Contents:​

Valved rear muffler
Valve extension harness
Clamps and hardware for installation
Single to dual 3.0" exhaust tips
Part 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
T304 Stainless Steel 12mm barbed exhaust hangers Tig-Welded in OE locations for precise fitment.​
Slip joints provide the most adjustability to obtain perfect fitment

Muffler deleted N55-powered BMWs are known to spark the interest of enthusiasts everywhere; the F3x chassis is no different. Turner Motorsport's line of muffler deletes offers quality fit and finish that will outlast the aluminized piping from your local exhaust shop. Turner CAD designed the F3x N55 muffler delete in-house, ensuring that each unit has integrated hangers and is mandrel bent to precisely fit in the factory exhaust location. Not a fan of the turndown? There's a cut line to add optional aftermarket tips Coupled with our Schwaben Exhaust Pipe Cutter, this muffler delete can easily be installed in your garage.

Turner Muffler Delete Kit removes the heavy and restrictive factory exhaust muffler and replaces it with a high flow, straight-through exhaust pipe. This adds a louder exhaust note in a simple, cost effective way without replacing the entire exhaust system and is fully compatible with the OEM rear valance. The muffler delete creates a noticeable increase in exhaust sound and more exhilarating turbo noise, without adding significant drone at cruising speeds. As an added bonus, our muffler delete shaves off 17.0 lbs. , weighing in at only 8.0 lbs compared to OEM muffler at 25.0 lbs!

PART DESIGN

TIG Welded, brushed finish, 304 stainless steel 70mm x 1.25 wall thickness tubing for straight-through exhaust gas routing
Mandrel bent to fit the OE exhaust location
Integrated hanger for a direct fit
Includes stainless steel exhaust clamp for the inlet location for a secure fit
​Flared inlet slips over the OEM exhaust tubing for a simple installation
Slightly larger cross sectional area for increased flow capability
​

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

The Dinan sport muffler is designed to compliment the 328/428 and not overpower the driver and passengers with harsh tones. Dinan engineers their exhausts to sound great and be a natural fit to the character of the car as well as produce more power and torque. Dual 3.5" stainless tips engraved with the Dinan logo fill out the rear valence (choose either polished or satin black tips). Annoying highway drone has also been engineered out of the system. Dinan uses only 304 stainless steel in their systems for the maximum corrosion protection. This system replaces the factory rear mufflers at a pre-determined cut point on the stock exhaust, which makes for an easy installation and you can reinstall your original mufflers using factory hardware. Detailed installation instructions are included.

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. The Dinan sport muffler is worth 3 point towards your Dinan badge.

This item fits the following BMWs:
2012-2015 F30 BMW 328i 328i X-Drive - Sedan
2012-2015 F31 BMW 328i X-Drive - Touring Wagon
2012-2016 F32 BMW 428i 428i X-Drive - Coupe

The Dinan sport muffler is designed to compliment the 340i and not overpower the driver and passengers with harsh tones. Dinan engineers their exhausts to sound great and be a natural fit to the character of the car as well as produce more power and torque. Dual 3.5" stainless tips engraved with the Dinan logo fill out the rear valence (choose either polished or satin black tips). Annoying highway drone has also been engineered out of the system. Dinan uses only 304 stainless steel in their systems for the maximum corrosion protection. This system replaces the factory rear mufflers at a pre-determined cut point on the stock exhaust, which makes for an easy installation and you can reinstall your original mufflers using factory hardware. Detailed installation instructions are included.

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. The Dinan sport muffler is worth 3 point towards your Dinan badge.

This item fits the following BMWs:
2016+ F30 BMW 340i 340iX - Sedan

B48 Muffler Delete - F30/F31/F32/F33/F36:

Arguably THE BEST modification for your N20/B48. This muffler delete sounds too good to be a 4 cylinder! The combination of N20/B48 and muffler delete surpasses all sound expectations from a 4-cylinder! Impressive direct-fit solution. With this new muffler delete you can transform the sound and driving experience of your f chassis. A simple installation that can be completed with hand tools gives you the ability to take your car to the next level at home in your garage!

The ECS muffler delete removes the heavy and restrictive factory exhaust muffler and replaces it with a high-flow, straight-through exhaust pipe. This adds a louder exhaust note in a simple, cost-effective way without replacing the entire exhaust system and is fully compatible with the OEM rear valance. The muffler delete creates a noticeable increase in exhaust sound and more exhilarating turbo noise, without adding significant drone at cruising speeds. As an added bonus, our muffler delete shaves off 21.0 lbs., weighing in at only 7.0lbs compared to the OEM muffler at 28.0lbs!

YoutTube Sound Clips Featured HERE:

Features and benefits:

Enhanced exhaust tone Simple installation (with instructions!) 21lb weight savings! (Factory muffler 28 lbs, muffler delete 7 lbs!) Tip adjustment capability ​ Slide farther on for left and right adjustment Rotate for verticle adjustment Good looking and durable 304 stainless steel construction Heavy-duty fabricated sheet metal exhaust hangers Dual staggered tip exhaust tips (integrated) Installation and Support:

Installation is as easy as cutting, placing into position, and clamping! Tools you might want for the job: Exhaust hanger removal pliers - T379176 Exhaust pipe cutter - T385451 - CLICK HERE FOR INSTALLATION INSTRUCTIONS -

High-Performance Ignition Service Kit - Gen 1 B48/46 2.0L:

High performance ignition kit for your Gen 1 B46/48 featuring spark plugs, Turner high performance ignition coils and dielectric grease to make sure you have no issues at your next maintenance interval!

Our BMW ignition coils are designed with performance and efficiency in mind. An engine needs 3 main components to run (Air, Fuel, Spark.) Turner ignition coils are modified to increase energy output; more energy output results in a faster, more efficient and consistent burn to make sure your fuel is being utilized to its maximum potential. Our signature Turner ignition coils feature a blue housing that give your engine the performance and aesthetic your looking for.

Ignition coils should be changed every 40,000 - 60,000 miles and are an important maintenance item due to the essential role they play in your engines health, performance and efficiency. Choose Turner Ignition Coils to keep your engine running strong and healthy.

Features and Benefits:

Increased performance New spark plugs and grease Direct fitment Signature Turner Blue ignition coils