Lightweight cat-back featuring an exotic exhaust note. Designed for the perfect blend of performance and functionality!

Prepare to give your 1 series the boost it deserves. This cat-back exhaust was made to redefine the driving experience of your 135. Manufactured from premium brushed stainless steel, it is not just about reducing weight; it's about enhancing performance with unrestricted airflow. And the sound? It's a symphony of power and precision, carefully crafted for an unforgettable soundtrack. The sound experience is more than you could ask for. With the freedom of exhaust- flow and tuned exhaust note, we are very excited to get these exhausts on 135's everywhere, don't wait!

Featured on the ECS Tuning YouTube Channel! - CLICK HERE FOR SOUND CLIPS! -

When crafting the ECS exhaust systems, their primary focus is on achieving the perfect balance of sound and comfort. ECS's understand the desire for a thrilling exhaust note without the annoyance of highway drone or interior vibrations. The exhaust for your 135 incorporates this balance, offering a strageic blend of sportiness and practicality. Drawing from their extensive experience, particularly with N55 cars like the E9x series, they have engineered an exhaust packed with innovative features, compatible with both factory and aftermarket downpipes. Experience the perfect blend of performance and everyday usability.

There is something about a cat-back exhaust that is just so good. Being able to unbolt and replace the entire visible exhaust gives you butterflies in your stomach. A fresh new exhaust and just knowing that things are about to get rowdy. This exhaust features twin 2.5" brushed pipes with flanges that bolt directly to your factory and aftermarket down-pipes. The dual 2.5" mid-pipes make their way toward the rear axle and converge into a single 3" exhaust section. The 3" exhaust section snakes through the rear section of the car making smooth dips and curves to make its way into a light-weight 3" turbo style muffler. Don't be fooled by the 135 muffler, the size is nothing but deceiving. The turbo-style muffler features an inner design that refines the exhaust note to perfection. An extraordinary mixture of both tone and volume. Paired with the 3" muffler is your choice of 3.5" exhaust tips that give your rear diffuser a sporty look that shouts performance.

Although both N54 and N55 share identical exhaust geometry, the N55 mid-pipes do not feature secondaries. Though the N55 cat-back is compatible with N54 downpipes this is not suggested. Supposedly this N55 catback sounds absolutely glorious on an N54, even with aftermarket downpipes.

Features and Benefits:

Street/Motorsport inspiration
Enhanced exhaust note
Full exhaust replacement
25% lighter than stock!
Stock cat-back: 56lbs
ECS cat-back: 42lbs
Reduction in back pressure for increased throttle response, TQ, and HP
Dual 3.5" fitted exhaust tips
Part Design:

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
Dual 2.5" 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:

Dual 2.5" mid-pipes
3" Rear exhaust section
3.0" free-flowing muffler section for better sound, and performance
Clamps and Hardware for an OEM+ install
Optional 3.5" ECS exhaust tips

Engineered for vehicles with vacuum-actuated exhaust valves, the ECS Remote Vacuum Exhaust Valve Control Kit puts you in complete command of your exhaust sound. This fully standalone system lets you open or close your valves instantly—no reliance on factory controls, drive modes, or complicated wiring.

At its heart is a self-contained vacuum pump and dedicated control module, operating entirely independent of your vehicle’s electronics. The result is broad compatibility with both OEM and aftermarket exhaust systems, allowing for the freedom to switch between aggressive performance sounds and a refined, quiet tone at the touch of a button.

Kit Includes:

Standalone Vacuum Pump – Delivers consistent vacuum for reliable valve function

Wiring Harness Options – Choose from a reversible cigarette lighter power adapter or a length of wire for custom hardwiring

High-Quality Vacuum Hose – Durable, leak-resistant construction for long-lasting performance

Remote Controllers – Compact fobs for easy operation from inside or outside the vehicle

Features:

Instant open/close control for exhaust valves

Operates completely independent of factory electronics

Universal compatibility with vacuum-actuated valve systems

Ideal for both aftermarket and factory exhaust setups

From stealthy early-morning starts to unleashing your exhaust’s full roar on demand, the ECS Remote Vacuum Exhaust Valve Control Kit gives you total control over your car’s voice—whenever and wherever you want it.

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

Achieving precise exhaust fitment can be tricky—especially when the exhaust hanger has room to slide. This movement can cause annoying rattles or even lead to contact with the underbody or rear bumper. The ECS Tuning Exhaust Locking Collar offers a simple and effective fix. Designed to clamp securely around the exhaust hanger, this collar keeps everything firmly in place, eliminating unwanted movement.

Crafted from high-strength 6031 billet aluminum and finished in a sleek black anodized coating, it delivers both durability and corrosion resistance. With this collar in place, your exhaust stays exactly where it should—no rattles, no surprises.

Product Design:

Made from precision machined 6061 aluminum Black anodized finish Stainless steel M5 X 0.8mm hardware Installation & Support:

Install the locking collar around your exhaust hanger, position the hanger in place, and snug the locking collar down in place against the hanger! ECS Exhaust Hanger Locking Collars are available for 10mm and 12mm exhaust hangers. Please measure your hangers before ordering. The 12mm locking collar can be found HERE.

Lightweight axle-back featuring an exotic exhaust note. Designed for the perfect blend of performance and functionality!

Prepare to give your 1 series the boost it deserves. Our cat-back exhaust was made to redefine the driving experience of your 135. Manufactured from premium brushed stainless steel, it is not just about reducing weight; it's about enhancing performance with unrestricted airflow. And the sound? It's a symphony of power and precision, carefully crafted for an unforgettable soundtrack. The sound experience is more than you could ask for. With the freedom of exhaust- flow and tuned exhaust note, we are very excited to get these exhausts on 135's everywhere, don't wait!

Featured on the ECS Tuning YouTube Channel! - CLICK HERE FOR SOUND CLIPS! -

In crafting this exhaust system, the primary focus is on achieving the perfect balance of sound and comfort. We understand the desire for a thrilling exhaust note without the annoyance of highway drone or interior vibrations. The ECS exhaust for your 135 incorporates this balance, offering a strategic blend of sportiness and practicality. Drawing from extensive experience, particularly with N54 cars like the E9x series, ECS has engineered an exhaust packed with innovative features, compatible with both factory and aftermarket downpipes. Experience the perfect blend of performance and everyday usability.

Prepare for a fresh new exhaust, things are about to get rowdy. This exhaust features twin 2.5" brushed pipes that slip fit and clamp onto your factory midpipes. The dual 2.5" mid-pipe adapter converges into a single 3" section heading toward the rear axle. The 3" exhaust section snakes through the rear section of the car making smooth dips and curves to make its way into a light-weight 3" turbo style muffler. Don't be fooled by the 135 muffler, the size is nothing but deceiving. The turbo-style muffler features an inner design that refines the exhaust note to perfection. An extraordinary mixture of both volume and smooth frequency. Paired with the 3" muffler is your choice of 3.5" exhaust tips that give your rear diffuser a sporty look that shouts performance.

Features and Benefits:

Street/Motorsport inspiration
Enhanced exhaust note
Full exhaust replacement
36% lighter than stock!
Stock axle-back: 39lbs
ECS axle-back: 25lbs
Reduction in back pressure for increased throttle response, TQ, and HP
Dual 3.5" fitted exhaust tips
Part Design:

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
Dual 2.5" 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:

2.5" mid-pipe adapters
3" Rear exhaust section
3.0" free-flowing muffler section for better sound, and performance
Clamps and Hardware for an OEM+ install
Optional 3.5" ECS exhaust tips

For secure exhaust connections, choose the 2.25" (57mm) Exhaust Clamp.

Engineered for durability and reliability, this clamp ensures a tight seal for your exhaust system components. Its high-quality construction and corrosion-resistant finish provide long-lasting performance, even in harsh conditions. With easy installation and a precise fit, this exhaust clamp is a must-have for any vehicle owner.

• Ensures a tight seal for exhaust system components
• High-quality construction for durability
• Corrosion-resistant finish for long-lasting performance
• Easy installation for convenience
• Precise fit for secure connections

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.

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.

Black Chrome UNIVERSAL Swivel Exhaust Tip - 4.0" offers both style and adjustability with its innovative design. This exhaust tip features a unique swivel collar that allows for precise alignment and perfect fitment. The tip can be adjusted to any direction, and once set, it remains securely in place by tightening the hex bolt to 14 ft-lbs (19 Nm).

• Precision Laser Etched Logo: Each tip includes a laser-etched logo for a premium look.
• Durable Construction: Built with chrome-plated nuts, a 304SS cap screw, clamp, insert ring, and exhaust tip for longevity.
• Stylish Design: Features a slant cut, double-wall construction, and rolled edge for a striking appearance.
• Versatile Fitment: Available in a 4.0" outlet and finished in a sleek black chrome.
• Dimensions:
  • Inlet Size: 3.0"
  • Overall Length: 7.0" (6.0" Tip + 1.0" Clamping Surface)
  • Outlet Size: 4.0"
  • Outlet Style: Double Wall, Rolled Edge, Slant Cut

Modification may be required for proper fitment.

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.

ECS Tuning "Ti.22" Titanium Exhaust Tips

Enhance your vehicle's appearance with ECS Tuning "Ti.22" Titanium Exhaust Tips, renowned as the most attractive tips available. These exhaust tips come in a striking matte titanium finish with a slant cut, single wall outlet design, ensuring a visually stunning addition to your vehicle.

Engineered for durability, these tips feature chrome-plated nuts, a 304SS cap screw, and clamp, guaranteeing long-lasting performance.

Please note: Modification may be necessary for proper fitment as these tips offer UNIVERSAL fitment and are not a direct fit for your vehicle. Ensure accurate measurement before ordering to ensure compatibility.

Benefits:

• Matte titanium finish for an attractive appearance
• Slant cut, single wall outlet design
• Engineered with durable materials for longevity
• Chrome-plated nuts, 304SS cap screw, and clamp for lasting performance

BMW & MINI ECS UNIVERSAL Exhaust Tips - 3.5" Titanium - Burnt Finish - Pair

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

Key Benefits:

• Eye-catching burnt-titanium-edge finish
• Durable construction with 304SS cap screws and clamps
• Single-wall, slant-cut outlet for a sleek appearance
• 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.