Introducing our Turner Performance Cat-Back Exhaust for your G20 M340! Precision-crafted exhaust that elevates your driving experience with a new level of excitement. Designed with our commitment to performance and quality, this exhaust is meticulously engineered to unleash the true potential of your M340. In tandem with performance and sound, our cat-back exhaust enhances the visual aesthetic with upgraded quad exit exhaust tips that complement the overall motorsport nature of the M340 and replace the fake factory exhaust tips. Upgrade your driving experience with our cat-back exhaust for your M340! Unleash the power, bask in the glorious sound, and turn heads wherever you go.

Using our signature design principles this exhaust is crafted to deliver a deep, authoritative tone that reveals the true rowdy attitude of the M340. Designed to utilize the factory valve control our cat-back provides an exhilarating sound during acceleration without compromising the daily driving amenities. Our exhaust is manufactured of 1.25mm wall T304 stainless steel for superior durability, corrosion resistance, and aesthetics. Designed with the customer in mind it features a straightforward bolt-on installation utilizing factory slip joints and mounting locations and includes are clamps and hardware necessary for installation.

Upgrading the sound:

Our exhaust allows you to turn up the volume and let the B58TU boast its smooth and hearty exhaust tone. Let's be honest, what's the point of owning a B58 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 B58 sound!

Upgraded aesthetics:

From the factory, the G chassis comes equipped with fake or imitation exhaust tips, our Turner exhaust allows you to remove the imitation tips from the vehicle and sport a set of 4 true exhaust tips giving that upgraded motorsport styling.

How the cat-back is designed:

To create a cat-back exhaust for this incredible vehicle the upgrade happens right at the downpipe. We replaced the factory components 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 the 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. Quad 3.5" 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
Compatible with factory and aftermarket downpipes (80mm)
Quad exit with true exhaust tips to replace factory facia
19 lb weight savings (Factory - 65lbs, Turner 46lbs)
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
Kit Contents:

3.0" front exhaust section (80mm flange to connect to factory and aftermarket downpipes)
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 3.5" Exhaust Tips
Product Development:

Our G 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.

Let’s be honest—what’s the point of owning a B58-powered BMW if you can’t hear it? The factory M340i and M440i rear muffler assembly is oversized, heavy, and overly restrictive, muting the deep, aggressive tone the B58 engine was designed to produce. Our Muffler Delete System is the perfect solution for enthusiasts looking to unleash that signature turbocharged inline-six sound without the cost of a full cat-back system.

Engineered and manufactured in-house, this system replaces the factory rear muffler with a free-flowing, TIG-welded 304 stainless steel setup designed to enhance tone, reduce weight, and maintain OE-level fitment and quality. At the front, 3" primary tubing mates seamlessly to your factory midpipe using a durable stainless steel sleeve clamp. At the rear axle, the primary tubing transitions to dual 2.5" adjustable tailpipe sections for a clean, yet aggressive look. These tailpipe sections merge to quad outlets, designed for compatibility with our selection of 3.5" exhaust tips, allowing you to tailor the system's appearance to your liking. Accuseal-style, slip-fit joints allow for easy adjustment, ensuring perfect tip placement inside the factory rear diffuser. The result? A more engaging exhaust note and a clean, motorsport-inspired appearance that transforms your BMW’s personality both visually and acoustically.

Features & Benefits

TIG-welded 3" primary tubing transitions to dual 2.5" adjustable tip sections for a bold, refined look Accuseal slip-fit joints offer full adjustability for precise alignment and perfect tip placement Direct-fit design connects to the factory exhaust at OE cut points using the original sleeve clamps Quad 2.5" tip outlets compatible with Turner tip options in Brushed Aluminum, Black Chrome, or Mirror Chrome Utilizes factory exhaust hangers for a clean, bolt-on installation—no cutting or drilling required Kit Contents:

Mid-Pipes (Left & Right) Crossover Pipes (Left & Right) Tail-Pipes (Left & Right) Logo Bracket & Hardware (2) Accuseal-Style Exhaust Clamps (2) Sleeve Exhaust Clamps (4) Turner Motorsport 3.5" Tips – Choose Your Finish! Product Development

Our G2X M340/M440 Muffler Delete Kit was designed, engineered, tested, and quality-inspected in-house to ensure the highest level of precision and quality through leading-edge product development technology.

We are proud to introduce our latest exhaust offering, the Black Chrome Rolled Angle Exhaust Tip! This tip comes in a gorgeous chrome finish and features a rolled angle, stepped design. Warning - you may become obsessed with cleaning and taking care of these beautiful tips!

Other Features Include:

3.0 Inlet
3.0 Outer Diameter
Black chrome Finish
Left Stepped Design
Rolled Angle Design

Turner Motorsport Rolled Angle Exhaust Tip - 3.0 Inlet - 3.0 OD - Stepped Left - Chrome brings a sleek and stylish upgrade to BMW exhaust systems. This high-quality exhaust tip features a striking chrome finish and a rolled angle, stepped design that adds both aesthetics and performance to your vehicle. Its precision design ensures a perfect fit and a bold look. With a 3.0-inch inlet and 3.0-inch outer diameter, this exhaust tip is designed to enhance the visual appeal of your BMW's exhaust system.

• Premium Chrome Finish: Adds a high-gloss, polished look to your vehicle’s exhaust.
• Rolled Angle Design: Provides a stylish and aggressive appearance.
• Stepped Left Design: Ensures a precise fit and a distinctive look.
• 3.0-Inch Inlet & Outer Diameter: Perfectly matches BMW exhaust systems for a seamless upgrade.
• Durable Construction: Built to withstand the elements and maintain its shine.

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:

3.0" Inner Diameter
4.0" Outer Diameter
Black Chrome Finish
Double Wall Construction
Straight 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.

Revamp your BMW's exhaust aesthetics with the ECS Tuning "Ti.22" Titanium Exhaust Tips, known for their remarkable attractiveness in the market. These exhaust tips showcase a stunning matte titanium finish and a slant-cut, single-wall outlet design, elevating your vehicle's appearance. Engineered for durability, they feature chrome-plated nuts, a 304SS cap screw, and clamp.

Key Benefits:

• Eye-catching matte titanium finish for enhanced aesthetics
• Slant-cut, single-wall outlet for a stylish look
• Durable construction with chrome-plated nuts and 304SS cap screw
• Universal fitment for various vehicles but may require modification for proper installation

Note: Modification might be necessary for proper fitment. This part offers UNIVERSAL fitment and may not directly fit your vehicle. Measuring before ordering is necessary.

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
Mirror Chrome Finish
Double Wall Construction
Angle Cut Style
Includes Stainless Steel Clamp

Elevate your vehicle's appearance with the ECS Tuning "Ti.22" Titanium Exhaust Tips! These tips, featuring a burnt-titanium-edge finish, showcase a slant cut, single wall outlet design, offering a visually stunning look. Crafted for durability, they include chrome-plated nuts, a 304SS cap screw, and clamp for a secure fit.

Key Specifications:

• Inlet Size: 2.5"
• Overall Length: 6.0" (4.5" Tip + 1.25" Clamping Surface)
• Outlet Size: 4.0"
• Outlet Style: Single Wall, Slant Cut

Note: Modification might be necessary for proper fitment. This part offers UNIVERSAL fitment and may require measurement prior to ordering to ensure compatibility with your vehicle.

BMW & MINI ECS UNIVERSAL Exhaust Tips - 3.5" Titanium - Matte Finish - Set of Four

BMW & MINI ECS UNIVERSAL Exhaust Tips - 3.5" Titanium - Matte Finish - Set of Four are the perfect upgrade for those seeking the most attractive exhaust tips on the market. Exclusively offered by Turner Motorsport, these tips feature a stunning matte titanium finish and a slant-cut, single-wall outlet for a sleek appearance. Engineered for durability, they include chrome-plated nuts, 304SS cap screws, and clamps.

Key Benefits:

• Elegant matte titanium finish
• Durable construction with 304SS cap screws and clamps
• Single-wall, slant-cut outlet for a refined look
• Universal fitment for BMW and MINI vehicles
• Easy to install with basic modifications

Dimensions:

• Inlet Size: 2.5"
• Overall Length: 6.0" (4.5" Tip + 1.25" Clamping Surface)
• Outlet Size: 3.5"
• Outlet Style: Single Wall, Slant Cut

Modification may be required for proper fitment. This part is UNIVERSAL fitment, meaning not a direct fit to your vehicle. You must measure before ordering.