BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW 1 Series

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

Ensure a secure connection between the downpipe and the turbo in your BMW with the Genuine V-Band Exhaust Clamp 11658585233. This high-quality clamp provides a reliable mount, ensuring optimal performance and exhaust system integrity.

• Genuine V-Band Exhaust Clamp for BMW
• Securely mounts downpipe to the turbo
• Ensures a reliable and durable connection
• Maintains optimal exhaust system performance

The combination of N52 and muffler delete surpasses all sound expectations from a small 1 series! Impressive direct-fit solution. With this new muffler/res delete you can completely transform the sound and driving experience of your 128. 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! What sounds better than an in-line six-cylinder paired with a race-inspired exhaust setup, the answer is nothing. You have a nimble chassis fitted with an engine that provides more than enough power for spirited street driving or even taking to the track, if the exhaust is still factory you do not know what you are missing out on.

The ECS N52 Muffler & Resonator Delete removes the heavy, restrictive factory muffler and replaces it with a lighter weight, high flow, T304 stainless steel 3.0" exhaust tubing. This exhaust 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. This upgrade creates a noticeable increase in exhaust sound, without adding significant drone at cruising speeds. As an added bonus, the ECS muffler delete shaves off about 16 lbs, weighing in at only 22 lbs. OEM units out of the 128 weigh in at around 38lb, a difference you will fully notice when upgrading your exhaust.

Features and Benefits:

Replace the factory muffler and resonator for a race-inspired straight 6-cylinder sound
Large radius bends for maximum exhaust gas flow
16lb weight reduction (Factory 38lb, ECS 22lb)
Fits in the factory exhaust hanger locations
Installation instructions featuring locations for removing your factory exhaust
Design:

In-house designed and engineered rear Muffler & Resonator Delete is made of T304 stainless steel, 1.25mm wall thickness, CNC mandrel bent 3.0" tubing for straight-through exhaust gas routing
High-quality stainless steel
Barbed exhaust hangers tig welded into the factory location for direct fitment
Stainless steel accuseal exhaust clamps included for a leak-proof seal
Large radius bends throughout with smooth transitions for the best flow possible

This factory midpipe from the N55 135i is a sound enhancement when used on the twin-turbo N54 models. This N55 midpipe does not have the secondary catalytic converters in place that the N54 cars had. Instead there are straight pipes leading to the resonator. Without the secondary catalytic converters in place the exhaust is louder and with more of a burble and rumble. It's a great first upgrade to make the N54 engine a bit louder and more aggressive! The problem with turbo engines is that the turbo itself will dampen the sound and make the engine harder to hear. And the N54 135i engine is further dampened by the secondary cats. This can be a problem on the track when you want other drivers to be able to hear you. This center section will restore some of that lost volume and open up the N54 engine. With less backpressure the turbos can spool up faster which will make a modest power improvement. There's an added bonus for the 1M coupe - drastically reduced droning at light throttle.

This is the factory BMW N55 midpipe. It's a direct fit to either the N54 or N55 engined cars with all of the correct bends and crimps to fit the E82 or E88 chassis. But it will only change the sound characteristics for cars with the N54 engine. The N54 and N55 use the same exhaust gaskets, rings, and hangers.

This product modifies (but does not remove or defeat) emissions equipment. For this reason this product may not be CARB compliant, and therefore not emissions legal in some states. Consult local laws and regulations in your area. For more information on this product, feel free to contact our sales department.

This item fits the following BMWs:
2008-2013 E82 BMW 135i 1M Coupe

Enhance your BMW's hose connections with this sleek and reliable smooth clamp. Crafted specifically for BMW models, this clamp ensures secure and leak-free connections for hoses. Experience improved durability and functionality in your BMW's system with this purpose-built smooth clamp.

Key Benefits:

• Secure and leak-free hose connections
• Designed specifically for BMW models
• Enhanced durability for long-term use

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.

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 10mm locking collar can be found HERE.