BMW Exhaust Parts, Mufflers & Catalytic Converters

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.

If you are bored of E53's factory exhaust and want to hear more of your German V8, Our E53 muffler deletes are the perfect solution! We developed a simple yet affective way to transform your exhaust without breaking the bank. Our E53 muffler delete system is a slip fit exhaust option that you can install in your own garage with just hand tools.

Over the years your factory muffler gets filled with deposits and turns almost rock solid (knock on them, they no longer sound hollow.) The build up of deposits add weight and can even reduce flow causing a restriction and build up of unwanted backpressure. You can now remove the large restrictive suitcase mufflers and a install light weight and free flowing exhaust that looks just as good as it sounds! To ensure the best driving experience the factory center resonator is left alone to ensure the least amount of drone while still getting that low rumble exhaust tone.

There are few exhaust options on the market for X5's and the ones available are expensive. With the muffler delete pipes, simply cut in front of the mufflers and get the heavy suitcases off your car. Your new muffler deletes feature dual 2.5" exhaust sections and come with the option of brushed aluminum or mirror chrome dual 3" tip exhausts that fit right at home in your factory rear valance.

Can be found in this episode of the "BUILT BY MIKE" YouTube Series

Features:

Turner designed Rear Muffler Deletes - made of T304 stainless steel, 1.25mm wall thickness, CNC mandrel bent 2.5" tubing for straight-through exhaust gas routing

Tig-welded exhaust hangers that fit into the factory location for direct fitment

Stainless steel Accuseal exhaust clamps are included for a leak-proof seal

Large radius bends throughout provide smooth transitions for optimal flow

Reversible with 2 60mm sleeve clamps (T#2423575)

KIT Options Include:

Muffler delete sections with clamps

Dual 3.0" exhaust tips (Mirror or Brushed Finish)

Optional exhaust pipe cutter and muffler hanger tools for a DIY

Among the many reasons enthusiasts flock to the S58 is its unmistakable exhaust character. BMW’s twin-turbocharged inline-six delivers a fierce, motorsport-inspired snarl at wide-open throttle—yet the factory mid-section muffles much of that personality. The stock resonator and restrictive flow path tame the soundtrack, muting the aggressive tone your G8X M3/M4 is capable of producing.

Turner Motorsport set out to change that. Their Resonator Delete transforms the factory system with a direct bolt-on mid-section engineered to free both sound and performance. By removing the bulky OEM resonator, integrating a true x-pipe, and shedding roughly 5 lbs of unnecessary weight, this upgrade enhances exhaust scavenging, sharpens throttle response, and unleashes a deeper, more engaging tone. Best of all, it retains full compatibility with the OEM downpipes and valved rear muffler—delivering a noticeable sound improvement while preserving factory functionality and easy reversibility.

Features:

Deeper, more aggressive exhaust note with added character and minimal drone

X-pipe design promotes efficient exhaust scavenging for improved flow

Maintains OEM valved muffler operation for factory refinement

Approximately 5 lb weight reduction vs. the stock center resonator

Brushed 304 stainless steel construction with clean TIG-welded seams

Design:

1.25 mm-wall brushed 304 stainless steel tubing

76.2 mm (3") diameter

304SS sleeve-style and Accuseal clamps with slip-joint adjustability

Installation:

Installation is as easy as cutting your factory exhaust, raising the new center resonator delete into position, and clamping. Click HERE for Installation Instructions. Product Development:

Our Resonator Delete/X-Pipe 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.

If you are bored of E53's factory exhaust and want to hear more of your German beast, our E53 muffler deletes are the perfect solution! We developed a simple yet affective way to transform your exhaust without breaking the bank. Our E53 muffler delete system is a slip fit exhaust option that you can install in your own garage with just hand tools.

Over the years your factory muffler gets filled with deposits becoming blocked up and less efficient. The build up of deposits can add weight and can even reduce flow causing build up of unwanted backpressure. You can now remove the large restrictive suitcase mufflers and a install light weight and free flowing exhaust that looks just as good as it sounds! To ensure the best driving experience, muffler deletes retain the factory center resonator to ensure the least amount of drone while still getting that low decibel roaring exhaust tone.

There are few exhaust options on the market for X5's and the ones available are expensive. With the muffler delete pipes, simply cut in front of the mufflers and get the heavy suitcases off your car. Your new muffler deletes feature dual 2.5" exhaust sections and come with the option of brushed aluminum or mirror chrome dual 3" tip exhausts that fit right at home in your factory rear valance.

Can be found in this episode of the "BUILT BY MIKE" YouTube Series

Stock vs Muffler Delete Comparison Video

Features:

Turner designed Rear Muffler Deletes - made of T304 stainless steel, 1.25mm wall thickness, CNC mandrel bent 2.5" tubing for straight-through exhaust gas routing

Tig-welded exhaust hangers that fit into the factory location for direct fitment

Stainless steel Accuseal exhaust clamps are included for a leak-proof seal

Large radius bends throughout provide smooth transitions for optimal flow

KIT Options Include:

Muffler delete sections with clamps

Dual 3.0" exhaust tips (Mirror or Brushed Finish)

Optional exhaust pipe cutter and muffler hanger tools for a DIY

Exhaust gaskets should be replaced any time the exhaust is taken apart or when a leak occurs. This Elring gasket is perfect to prevent any future leaks and to fix old ones.

Elring is one of the biggest OEM names in the manufacturing of high quality gaskets that are available for very affordable prices. Elring has supplied many automotive names for years with the gaskets that seal your car's components from day 1 so you can rest assured that these components will last for a long time to come!

Fits the following BMW's:
E46, E39, E60, E83, E53, E70, E36 Z3, E85 Z4

Fits the following Engines:
M54, N52

Located between the downpipes and the center section of the exhaust. This seals off the connection between the exhaust pipes.

Fits the following BMW engines:
S54 3.2L