Turner Motorsport BMW Axleback Exhaust for BMW 4 Series F32 (2014+)

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Axleback exhaust systems generally include what's behind your rear axle. These are among the easiest of exhaust upgrades to install, and give you an instant upgrade in sound.
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Turner Muffler Delete - F3x N55
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Turner Motorsport - Corporate Logo
T#:4374139
Part#: 008727LA01
In Stock
Sale - Save 25% $ 407.99

This product was last offered at the strikethrough price on
06-14-2026

$ 305.99 USD
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Sale - Save 25%
$ 407.99

This product was last offered at the strikethrough price on
06-14-2026

$ 305.99 USD
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Ditch your factory muffler, and let your N55 roar. Direct fit, simple DIY install.
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B48 Valved Axle-Back Exhaust - F30/F31/F32/F33/F36
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Turner Motorsport - Corporate Logo
T#:28171556
Part#: 048013LA07KT
Ships in 5 Business Days
Sale - Save 15% $ 635.97

This product was last offered at the strikethrough price on
06-14-2026

$ 540.57 USD
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Sale - Save 15%
$ 635.97

This product was last offered at the strikethrough price on
06-14-2026

$ 540.57 USD
Free Shipping on orders $49 and up

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

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Muffler Delete Kit - F30 340i, F32/F33 440i
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:50381428
Part#: 055852LA01KT
In Stock
New Item
Sale - Save 15% $ 407.99

This product was last offered at the strikethrough price on
06-14-2026

$ 346.79 USD
Free Shipping
Sale - Save 15%
$ 407.99

This product was last offered at the strikethrough price on
06-14-2026

$ 346.79 USD
Free Shipping

Let's be honest—what's the point of owning a B58-equipped BMW if you can't hear it? The F30 340i and F32/F33 440i feature a bulky, suitcase-style rear muffler assembly that muzzles the B58's turbocharged symphony. While cat-back exhaust systems can be a serious investment, our new muffler delete kit offers a cost-effective alternative that delivers all the sound, style, and performance your BMW deserves.

Our system completely transforms the character of your F3X by replacing the restrictive rear muffler with a high-flowing, TIG-welded stainless steel setup that enhances tone, reduces weight, and maintains factory fitment and finish. The Turner Motorsport Muffler Delete Kit features dual 80mm primary tubing that transitions to adjustable 100mm tip sections for a clean yet aggressive look. Up front, the muffler delete kit attaches to the OEM mid-pipe using factory-style sleeve clamps. The connecting pipe is installed at a factory cut location, creating an easy and reversible modification. At the rear, the included sleeve clamps enable easy adjustment and precise tip placement inside the factory rear diffuser.

Features & Benefits:

TIG-welded dual 80mm primary tubing seamlessly transitions to adjustable, twin slash-cut 100mm tip sections, delivering a bold, refined appearance Straightforward cut-and-clamp installation, 100% reversible Sleeve clamps provide full adjustability for effortless alignment and precise tip positioning Utilizes factory exhaust hangers for a clean, bolt-on installation—no cutting or drilling required Installation & Support:

- Click HERE for Installation Instructions -

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Turner Motorsport Rear Muffler Delete Kit With Tips - F30 F32 F33 N55...
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Turner Motorsport - Corporate Logo
T#:11955489
Part#: 008727LA01A
In Stock
Sale - Save 25% $ 407.99

This product was last offered at the strikethrough price on
06-14-2026

Starting at $ 305.99 USD
Free Shipping
Sale - Save 25%
$ 407.99

This product was last offered at the strikethrough price on
06-14-2026

Starting at $ 305.99 USD
Free Shipping

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

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Turner Motorsport Valved Axle Back Exhaust - F30/32 335i 435i N55 ...
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Turner Motorsport - Corporate Logo
T#:637484
Part#: 025817TMS10KT
In Stock
Sale - Save 25% $ 1,650.99

This product was last offered at the strikethrough price on
06-14-2026

$ 1,238.24 USD
Sale - Save 25%
$ 1,650.99

This product was last offered at the strikethrough price on
06-14-2026

$ 1,238.24 USD
Our valved axle-back exhaust system for the BMW F30 335 or F32 435i gives you the versatility you want in an exhaust system. Valves open, you can let everyone know you're here - loud pipes save lives, right? Valves closed for when the kids or the dogs are sleeping in the back seat on a long road trip. Our valved axle-back system functions differently from other alternatives on the market, including the factory system; most of these we've found only utilize one side of the exhaust system for either valve closed or valve open operation. Accordingly, we designed our Turner valved axle-back to utilize both muffler exits for valve open and valve closed operation. We use beautiful 1.25mm thick, 80mm 304SS pipes with smooth mandrel bends to create our axle-back, ensuring that our systems are as visually appealing as they are audibly. We believe we've done the F30 335i and F32 435i the justice it deserves from an exhaust perspective - your turn to judge!
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Customize Your Own - Turner Motorsport Titanium Valved Exhaust - F30/...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:12118974
Part#: 025817TMS07A
In Stock
Sale - Save 10% $ 1,953.99

This product was last offered at the strikethrough price on
06-14-2026

Starting at $ 1,758.58 USD
Free Shipping
Sale - Save 10%
$ 1,953.99

This product was last offered at the strikethrough price on
06-14-2026

Starting at $ 1,758.58 USD
Free Shipping

Increase flow, turn up the volume, and shed some weight for the track. This is your chance to build your very own customized exhaust for your 335. We are excited to offer you the opportunity to spec out your exhaust just the way you want it. These exhaust components are strikingly good looking with beautiful welded pie cut construction and offer weight savings of over 55%. You can drop more than half the weight of your factory exhaust and give your car the aggressive sound it should have came optioned with from the factory.

We set out to amplify the F30/F32 with a proper exhaust system. To accomplish this goal, our engineers increased flow, give you the options to reduce weight by 27lbs, and deliver an exhaust system that captures the full unrestricted sound of the turbo inline-6 N55 engine. The increase in flow is gained from single free flowing 3.0" titanium exhaust pipes that feed into the best designed muffler on the market. Our Turner muffler is specifically designed with flow in mind to ensure that even with the exhaust valves closed, the muffler flows and sounds better than the stock muffler. Weight reduction is achieved by replacing the factory piping with lightweight Ti22 titanium and a full titanium muffler for the most weight advantage possible. The best part of the full titanium 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 our Turner Titanium exhaust being the clear answer in your mission to find the best exhaust for your N55 powered F30.

Part Design:

In-house designed and engineered using FARO ARM laser scanning technology and SolidWorks 3D CAD modeling for precision fitment.
Ultra-lightweight, Gr2 Titanium Alloy Material in a natural finish - 1mm wall thickness, back purged and TIG-welded throughout
3.0"OD tubing full system featuring pie-cut bend sections
Weight savings over the OEM exhaust system:
OEM Downpipe-back (without tips): 48 lbs
Turner Titanium Downpipe-back (without tips): 21 lbs
27 lb weight reduction!
Titanium 10mm barbed exhaust hangers Tig-Welded in OE locations for precise fitment.​
Strategically placed slip joints provide the most adjustability to obtain perfect fitment
Lightweight Gr2 Titanium Valved Muffler Optimized for superior flow over OEM

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