E82/E88 135 Muffler Delete & M-Sport Rear Diffuser
- Mfg Part #
- 039172EBKT
- ECS Part #
- ES#4876665
- Brand
-
This product was last offered at the strikethrough price on
05-05-2026
Product Details
A full aesthetic and sound transformation that is a direct fit solution. Both the diffuser and muffler delete are a direct replacement for the factory unit that can be upgraded with hand tools, no cutting or modification necessary!
M-Sport Rear Diffuser Upgrade:
Introducing our rear diffuser designed exclusively for your 1 Series – a perfect intersection of aftermarket and factory styling. Rarely do you find a design that not only encapsulates every curve and contour of a vehicle but elevates its overall aesthetic with a single, impactful addition. There are limited aftermarket options available for the 1 Series, our engineers have risen to the challenge of providing aftermarket support for these perfectly sized vehicles starting with this one-of-a-kind rear bumper upgrade.
Our diffuser replaces the mundane factory M Sport diffuser with a perfectly fitting alternative, designed to enhance the rear end of your 1 Series. Using the existing factory hardware and tab mounting locations, a transformation is merely a few screws and a plastic trim tool away. During the prototype phase, we achieved an impressive fit and finish, but our commitment to excellence led us to make further refinements. With our updated design, the ECS diffuser is now polished to perfection, an indication of the time and effort we invest in each product.
Installation is a breeze, requiring no drilling, cutting, or modifications of any kind. Simply remove your current valance, align the tabs, and effortlessly secure the diffuser in place using the factory mounting locations and hardware. Ensure a snug fit by verifying the alignment of all tabs, and with a gentle press, witness the tabs seamlessly click into position.
Features and benefits:
- Transformative
- Adds character and depth to the rear of the 1-series
- Direct fit utilizing factory clip locations and hardware
- Offered in Textured Matte Black and Gloss Black
- Made from lightweight, vacuum-formed UV-stabilized gloss black ABS polymer
- Fits both E82 and E88 with the M-Sport Package
Muffler Delete:
The combination of 135 and muffler delete surpasses all sound expectations and is suspiciously easy to install! The impressive direct-fit solution, no cutting involved. With our new muffler delete you can transform the sound and driving experience of your 135. A simple installation that can be completed with hand tools allows you to take your car to the next level at home in your garage!
Our muffler delete 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 23.0 lbs., weighing in at only 7.0 lbs compared to the OEM muffler at 30 lbs!
Sound clips featured on our YouTube channel Here:
Features and benefits:
- Enhanced exhaust tone
- Simple installation (with instructions!)
- 23lb weight savings! (Factory muffler 30 lbs, muffler delete 7 lbs!)
- Swivel tip adjustment capability
- Good looking and durable 304 stainless steel construction
- Factory position exhaust hangers
- Dual staggered tip exhaust tips
Installation and Support:
- Installation is as easy as unbolting, placing into position, and reinstalling fasteners!
- Instructions are featured in the "Installation" tab above product details
- Tools you might want for the job:
- Exhaust hanger removal pliers - ES2784927
This Part Fits the Following Vehicles
| Make | Model | Submodel | Engine | Special Fitment Notes |
|---|---|---|---|---|
| BMW | E82 | 135i | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E82 | 135i | N55 3.0L | Use vehicle selector to confirm fitment |
| BMW | E88 | 135i | N54 3.0L | Use vehicle selector to confirm fitment |
| BMW | E88 | 135i | N55 3.0L | Use vehicle selector to confirm fitment |
Kit Contents
| Description | Brand | Qty | Lifetime | |
|---|---|---|---|---|
| ECS UNIVERSAL Swivel Exhaust Tip - 3.5" Chrome - Priced Each |
|
2 | YES | |
| E8x M-Sport Rear Diffuser - Textured Black |
|
1 | YES | |
| N54/N55 Muffler Delete - E82/E88 135 |
|
1 | YES |
This Product Is Covered By Our Lifetime Replacement Program
Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.
If you have any questions, would like to learn more or are ready to place a replacement claim, click here!
Return and Exchanges
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All you need is your order number and email address.
New/Unused Product Returns
ECS Tuning will accept returns for unused products within 90 days of the ship date for a refund to the original payment method used. The customer is responsible for the return shipping costs and fees. If selecting to use a prepaid shipping label, the shipping cost will be deducted from the total refunded amount. All new/unused products must be new, unused and must be in the original packaging, including labeling, manuals, hardware, etc. Special order parts are non-refundable.
In the event that we find an error on our website or on behalf of an ECS Tuning Representative, we will provide a return shipping label from the original delivery location.
Refused Packages
Any domestic orders that are returned to ECS Tuning as refused by receiver or non-deliverable will be subject to a return handling fee and will be processed as a return in compliance with our standard return policy, including a 15% restocking fee.
Any international orders that are refused at the time of delivery will be subject to carrier abandonment of the package, at which time the ordered products would be discarded by the carrier. The customer will not be refunded for the value of the order and the discarded products are no longer retrievable.
Return Process
ECS Tuning now offers an online returns solution! To get started, simply log into your ECS Tuning account, Click the "View Orders" button on the My Account home page and select the order that you wish to make a return on to begin. If you have any questions, feel free to reach out to our Customer Service Team for assistance!
Please note: Refunds will be processed to the original payment method used on the order or to an in store credit, respective to the type of return that is made as well as any pre-existing arrangements with an ECS Tuning Customer Service Representative. In the event that multiple forms of payment were used, we will refund the value to an in store credit. In the event that a return label is provided, these charges may be deducted from the total refund you receive.
Original shipping costs are non-refundable and the buyer is responsible for return shipping charges. ECS Tuning will not accept COD deliveries.
All in store credit balances will expire after one year from the original purchase date.
Shipping Policy
Free Shipping On Orders $49 & Up
Items marked with a 'Free Shipping On Orders $49 and Up' logo may qualify for free standard economy ground shipping to the contiguous United States (48 states) for most orders with a value greater or equal to $49.00 USD. Oversized products and direct ship products are excluded from this offer unless otherwise noted.
Free Shipping
Items marked as 'Free Shipping' may qualify for free standard economy ground shipping to the contiguous United States (48 states). Oversized products and direct ship products are excluded from this offer unless otherwise noted.
The policies listed above are subject to change at any time without notice.
Lifetime Replacement
Want to know more about our Lifetime Replacement program?
Click here to learn more.
Why You Should Shop From ECS Tuning
ECS Tuning stands out as more than an automotive parts supplier-it's a vibrant community fueled by a shared passion for cars. Born from the enthusiasm of car lovers, we offer an unmatched understanding and commitment to the automotive world, providing high-quality parts and accessories sourced from our own experiences. Our selection is meticulously crafted to meet the highest standards of performance, quality, and design, catering to both the latest trends and classic styles.
Our distinct advantage lies in our passionate team and comprehensive support, offering expert advice and seamless service from selection to installation. Shopping with ECS brings exclusive perks, including our Lifetime Replacement Guarantee and free shipping on orders over $49, enhancing the value of every purchase. As a central hub for car enthusiasts, ECS Tuning fosters a rich community where ideas and experiences flourish, transforming us from a mere supplier into a platform where automotive dreams come to life.
Cancellation Policy
At ECS Tuning, we understand that plans can change. That's why we offer a flexible cancellation policy for our customers. You may cancel your order at any time before you receive the shipment confirmation. This policy is designed to provide you with peace of mind and the flexibility to make adjustments to your purchases as needed. Should you decide to cancel your order, simply reach out to our customer service team, and we will assist you with the process swiftly and efficiently.
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