Muffler Delete & M-Sport Rear Diffuser - E82/E88 135i
Complete transformation for your 1 series. Direct bolt on muffler delete for a rowdy sound and a new and improved aggressive diffuser to compliment the exhaust.
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:
Presenting the ECS rear diffuser tailored exclusively for your 1 Series – a fusion of both aftermarket and factory styling. Rarely does one find a design that not only encapsulates every curve and contour of a vehicle but elevates its overall aesthetic with a single, impactful addition. Amongst the limited options available for the 1 Series, the engineers at ECS have risen to the challenge of providing aftermarket support for these perfectly sized vehicles.
The diffuser replaces the mundane factory M Sport diffuser with a perfectly fitting alternative, designed to enhance the rear end of the 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, an impressive fit and finish were achieved, but their commitment to excellence led them to make further refinements. With the updated design, the ECS diffuser is now polished to perfection, an indication of the craftsmanship invested in each product.
Installation is a breeze, requiring no drilling, cutting, or modifications of any kind. Simply remove the 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.
For those with a 1 Series, anticipate a wave of excitement as a range of exhaust options tailored to all motor variants, including the N52, N54, and N55, are unveiled.
Features and advantages:
Transformative Enhances the rear aesthetic of the 1 Series Direct fit utilizing factory clip locations and hardware Available in Textured Matte Black and Gloss Black Crafted from lightweight, vacuum-formed UV-stabilized gloss black ABS polymer Compatible with both E82 and E88 models equipped with the M-Sport Package
135 Muffler Delete:
Arguably THE BEST modification for your 135. No cutting necessary, Direct bolt-on for a complete transformation!
The combination of 135 and muffler delete surpasses all sound expectations and is suspiciously easy to install! An impressive direct-fit solution, with no cutting involved. With the 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! At the rear of the car just below the back seats, there is a factory flange with two bolts, simply remove the two bolts and barb from the factory hanger and swap with the ECS Tuning muffler delete for a direct replacement. Its as simple as that! Check out the installation instructions for a list of tools you will need!
-- CLICK HERE FOR INSTALLATION INSTRUCTIONS --
The ECS 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, this muffler delete shaves off 23.0 lbs., weighing in at only 7.0 lbs compared to the OEM muffler at 30 lbs!
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! Tools you might want for the job: Exhaust hanger removal pliers - T379176 Product Development:
Our muffler delete was designed, engineered, tested, and quality inspected by our Research and Development team in our Wadsworth, Ohio facility. We strive for 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, and rigorous long-term product testing.
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This product was last offered at the strikethrough price on
05-05-2026
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Product Details
Complete transformation for your 1 series. Direct bolt on muffler delete for a rowdy sound and a new and improved aggressive diffuser to compliment the exhaust.
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:
Presenting the ECS rear diffuser tailored exclusively for your 1 Series – a fusion of both aftermarket and factory styling. Rarely does one find a design that not only encapsulates every curve and contour of a vehicle but elevates its overall aesthetic with a single, impactful addition. Amongst the limited options available for the 1 Series, the engineers at ECS have risen to the challenge of providing aftermarket support for these perfectly sized vehicles.
The diffuser replaces the mundane factory M Sport diffuser with a perfectly fitting alternative, designed to enhance the rear end of the 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, an impressive fit and finish were achieved, but their commitment to excellence led them to make further refinements. With the updated design, the ECS diffuser is now polished to perfection, an indication of the craftsmanship invested in each product.
Installation is a breeze, requiring no drilling, cutting, or modifications of any kind. Simply remove the 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.
For those with a 1 Series, anticipate a wave of excitement as a range of exhaust options tailored to all motor variants, including the N52, N54, and N55, are unveiled.
Features and advantages:
- Transformative
- Enhances the rear aesthetic of the 1 Series
- Direct fit utilizing factory clip locations and hardware
- Available in Textured Matte Black and Gloss Black
- Crafted from lightweight, vacuum-formed UV-stabilized gloss black ABS polymer
- Compatible with both E82 and E88 models equipped with the M-Sport Package
135 Muffler Delete:
Arguably THE BEST modification for your 135. No cutting necessary, Direct bolt-on for a complete transformation!
The combination of 135 and muffler delete surpasses all sound expectations and is suspiciously easy to install! An impressive direct-fit solution, with no cutting involved. With the 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! At the rear of the car just below the back seats, there is a factory flange with two bolts, simply remove the two bolts and barb from the factory hanger and swap with the ECS Tuning muffler delete for a direct replacement. Its as simple as that! Check out the installation instructions for a list of tools you will need!
-- CLICK HERE FOR INSTALLATION INSTRUCTIONS --
The ECS 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, this muffler delete shaves off 23.0 lbs., weighing in at only 7.0 lbs compared to the OEM muffler at 30 lbs!
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!
- Tools you might want for the job:
- Exhaust hanger removal pliers - T379176
Product Development:
Our muffler delete was designed, engineered, tested, and quality inspected by our Research and Development team in our Wadsworth, Ohio facility. We strive for 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, and rigorous long-term product testing.
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