Find Parts That Fit Your Vehicle

Rear Diffuser

Adding a more aggressive rear diffuser to your BMW can offer some performance benefits, but is primarily an aesthetic upgrade. BMWs naturally look great from the rear, why not make yours look even better?
Sort By:

Turner Motorsport Textured ABS Matte Black Diffuser - E36 M3 ...
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:6258334
Part#: 006706LA10KT
In Stock
Sale - Save 16% $ 319.99
$ 269.00 USD
Free Shipping
Sale - Save 16% $ 319.99
$ 269.00 USD
Free Shipping
We at Turner Motorsport weren't happy with the current offerings for E36 M3 diffusers, so we decided to create something new!
Turner Motorsport ABS Diffuser - E46 M3
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:597333
Part#: 028979TMS01
In Stock
Sale - Save 31% $ 315.99
$ 218.00 USD
Free Shipping
Sale - Save 31% $ 315.99
$ 218.00 USD
Free Shipping
We at Turner Motorsport weren't happy with the current offerings for E46 M3 diffusers, so we decided to create something new! Upgrade the exterior styling on your BMW E46 M3 with the Turner In-House designed and engineered ABS Rear Diffuser. The same style as the Turner Carbon Diffuser, but in a more affordable ABS plastic! Using all factory mounting locations, this diffuser is a direct bolt-on upgrade, that can be installed in minutes. Featuring a deep profile, an aggressive fin design, and extending the entire width of the rear bumper, this exclusive design from Turner Motorsport will be sure to turn heads! Make a bold statement and let your BMW stand out with the Turner ABS Diffuser! Features & Specifications: Diffuser with curvature designed around the E46 M3 body lines Designed in-house using state of the art 3d laser scanning and CAD technology for precision fitment Mounts to existing bumper insert mounting locations with OE hardware Made from lightweight, vacuum-formed ABS polymer, with UV-stabilized gloss black sheet Mimics the lower section of the bumper & OE diffuser lines to accentuate OEM features Mounts to OE clip locations and OE holes on the outer edges of the bumper with supplied, stainless hardware
Show More Show Less
Turner Carbon Fiber Rear Diffuser - F87 M2
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:639026
Part#: 028530TMS01
In Stock
Sale - Save 20% $ 683.99
$ 547.19 USD
Free Shipping
Sale - Save 20% $ 683.99
$ 547.19 USD
Free Shipping
Upgrade the exterior styling on your BMW F87 M2 with the Turner In-House engineered Carbon Fiber Rear Diffuser. Using all factory mounting locations, this diffuser is a direct bolt-on upgrade that can be installed in minutes. Featuring a deep profile, aggressive fin design, and hand-laid 2x2 pre-preg carbon fiber, this exclusive design from Turner Motorsport will be sure to turn heads!
Show More Show Less

Turner Carbon Fiber Rear Diffuser - F8x
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:584863
Part#: 023241TMS01
In Stock
Sale - Save 25% $ 704.99
$ 528.74 USD
Free Shipping
Sale - Save 25% $ 704.99
$ 528.74 USD
Free Shipping

A beautiful addition to make the rear of your F8X stand out!

Show More Show Less

Gloss Black Rear Diffuser - G80/G82/G83 M3/M4
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:16940491
Part#: 048254LA01KT
In Stock
Sale - Save 25% $ 514.99
$ 386.24 USD
Free Shipping
Sale - Save 25% $ 514.99
$ 386.24 USD
Free Shipping

Upgrade the exterior styling on your G80/G82 with our In-House designed and engineered ABS Rear Diffuser. Utilizing factory mounting locations and supplied hardware this diffuser is a direct bolt-on upgrade that can be installed directly in place of your factory diffuser. Featuring a deep profile, an aggressive fin design, and extending the entire width of the rear bumper, our exclusive design is sure to turn heads! Our engineers did an absolutely amazing job on this diffuser from the styling to the fit and finish that is guaranteed to stand out in the market.

Pay close attention to the design characteristics of the diffuser. The emphasized outline of the diffuser adds a whole new dimension to the rear bumper bringing out the beautiful body lines of the G80. By adding an aggressive fin design and boxing around the exhaust exits the rear/side view is almost transformed into a whole new sub model that BMW forgot to offer.

Features & Specifications:

Designed to accentuate the G80/G82 body lines
Perfectly houses quad 4.0" exhaust tips for upgraded and factory exhausts
Designed in-house using state of the art 3d laser scanning and CAD technology for precision fitment
Mounts to existing bumper insert mounting locations with supplied hardware
Made from lightweight, vacuum-formed ABS polymer, with UV-stabilized gloss black sheet
Mimics the lower section of the bumper with added character to amplify OEM features
Product Development:

Our Turner Motorsport Rear Diffuser was designed, engineered, tested and quality inspected by our Research and Development team. 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 modelling, rapid prototyping utilizing our in-house 3D printer, and rigorous long term product testing.

Show More Show Less
Turner Motorsport Smooth ABS Matte Black Diffuser - E36 M3
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:640267
Part#: 006706LA09KT
In Stock
Sale - Save 16% $ 318.99
$ 269.00 USD
Free Shipping
Sale - Save 16% $ 318.99
$ 269.00 USD
Free Shipping
We at Turner Motorsport weren't happy with the current offerings for E36 M3 diffusers, so we decided to create something new!

Turner Motorsport Carbon Fiber Diffuser - E46 M3
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:586814
Part#: 028937TMS01
In Stock
Sale - Save 5% $ 662.99
$ 629.84 USD
Free Shipping
Sale - Save 5% $ 662.99
$ 629.84 USD
Free Shipping
Upgrade the exterior styling on your BMW E46 M3 with the Turner In-House designed and engineered Carbon Fiber Rear Diffuser. Using all factory mounting locations, this diffuser is a direct bolt-on upgrade that can be installed in minutes. Featuring a deep profile, an aggressive fin design, and hand-laid 2x2 pre-preg carbon fiber, this exclusive design from Turner Motorsport will be sure to turn heads!
Show More Show Less
Turner Gloss Black ABS Diffuser - G20 M340i/xDrive
10X Entries For Our Spin To Win Sweepstakes! Does not fit factory exhaust tips
Turner Motorsport - Corporate Logo
T#:642120
Part#: 008653LA01
In Stock
Sale - Save 22% $ 511.99
$ 399.00 USD
Free Shipping
Sale - Save 22% $ 511.99
$ 399.00 USD
Free Shipping
Upgrade the exterior styling on your BMW G20 M340 with the Turner In-House engineered Gloss Black Rear Diffuser. Using all factory mounting locations, this diffuser is a direct bolt-on upgrade that can be installed in minutes. Featuring a deep profile, an aggressive fin design, this exclusive design from Turner Motorsport will be sure to turn heads!
Show More Show Less

Turner Carbon Fiber Diffuser - G20 M340i / xDrive
10X Entries For Our Spin To Win Sweepstakes! Does not fit factory exhaust tips
Turner Motorsport - Corporate Logo
T#:642041
Part#: 013748LA01
In Stock
Sale - Save 10% $ 789.99
$ 710.99 USD
Free Shipping
Sale - Save 10% $ 789.99
$ 710.99 USD
Free Shipping
Upgrade the exterior styling on your BMW G20 M340 with the Turner In-House engineered Carbon Fiber Rear Diffuser. Using all factory mounting locations, this diffuser is a direct bolt-on upgrade that can be installed in minutes. Featuring a deep profile, an aggressive fin design, and hand-laid 2x2 pre-preg carbon fiber, this exclusive design from Turner Motorsport will be sure to turn heads!
Show More Show Less

Gloss Black Rear Diffuser - G87 M2
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:21012584
Part#: 050525LA01
In Stock
Sale - Save 60% $ 425.99
$ 170.18 USD
Free Shipping
Sale - Save 60% $ 425.99
$ 170.18 USD
Free Shipping

Transform the look of your G87 with our Turner in-house designed ABS Rear Diffuser, meticulously crafted for a bold style upgrade. Engineered to seamlessly replace your factory diffuser, this upgrade transforms the rear profile with its striking deep profile and aggressive fin design, exclusively crafted by our engineers at Turner to command attention.

The diffuser's design accentuates the sleek contours of the G87, elevating its aesthetic appeal. Installation is effortless, requiring no modifications. Simply uninstall the current valance, align the tabs, and securely fasten the diffuser into place using the factory hardware and mounting points. Confirm a perfect fit by ensuring tab alignment, then effortlessly secure them with a gentle press for a flawless finish.

Features & Specifications:

Transformative
Designed to accentuate the G87 body lines
Mimics the lower section of the bumper with added character to amplify OEM features
Perfectly houses quad 4.0" exhaust tips for upgraded and factory exhausts
Designed in-house using state of the art 3d laser scanning and CAD technology for precision fitment
Direct fit utilizing factory clip locations and hardware
Crafted from lightweight, vacuum-formed UV-stabilized gloss black ABS polymer
Product Development:

Our Turner Motorsport Rear Diffuser was designed, engineered, tested and quality inspected by our Research and Development team at Turner Motorsport. 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 modelling, rapid prototyping utilizing our in-house 3D printer, and rigorous long term product testing.

Show More Show Less
Turner Carbon Fiber Add-On Lower Diffuser Kit - F8X
10X Entries For Our Spin To Win Sweepstakes! Only for use with T#584863
Turner Motorsport - Corporate Logo
T#:587860
Part#: 24623TMS01KT
In Stock
Sale - Save 3% $ 1,313.99
$ 1,274.57 USD
Free Shipping
Sale - Save 3% $ 1,313.99
$ 1,274.57 USD
Free Shipping
If you already have the Turner upper diffuser installed on your vehicle, this kit includes all of the hardware you need to install the lower as well.
Show More Show Less
Turner Carbon Upper & Lower Rear Diffuser Kit - F8X
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:587258
Part#: 24623TMSKT
In Stock
Sale - Save 15% $ 2,016.99
$ 1,714.44 USD
Free Shipping
Sale - Save 15% $ 2,016.99
$ 1,714.44 USD
Free Shipping
Both Upper & Lower Diffusers paired together to save you money!
Show More Show Less


CSL Style Carbon Fiber Diffuser
10X Entries For Our Spin To Win Sweepstakes!
ECS - Corporate Logo
T#:391782
Part#: E46CSLCFDIFF
Back Ordered
Sale - Save 20% $ 490.99
$ 392.79 USD
Free Shipping
Sale - Save 20% $ 490.99
$ 392.79 USD
Free Shipping
Half carbon diffuser to complete your CSL look
ECS Carbon Fiber Rear Diffuser - E92 M3
10X Entries For Our Spin To Win Sweepstakes!
ECS - Corporate Logo
T#:638447
Part#: E9XM33DCFDIF
Ships in 5 Business Days
$ 554.99 USD
Free Shipping
$ 554.99 USD
Free Shipping
Looking to add a bit of aggressive styling to your BMW? The ECS Tuning Carbon Fiber Rear Diffuser is just what you need! Featuring a UV-resistant clear coat and 2x2 style carbon weave, this diffuser is the perfect addition to make your M3 stand out.
Show More Show Less
3D Design - Corporate Logo
T#:4621116
Part#: 3108-30211
In Stock
$ 1,595.00 USD
Free Shipping
$ 1,595.00 USD
Free Shipping
This gorgeous rear diffuser from 3D Design boasts all the major values this brand embodies; exquisite attention to detail, masterful finish work, and supreme fitment. Featuring a carbon-fiber weave pattern laid with care and attention, and a deep rich clear coat finish that will last for years to come, this is a part worth far more than its weight in carbon. 3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look. Carbon Fiber Construction Attaches directly in place of stock diffuser
Show More Show Less

MINI R56 JCW GP2 Rear Center Diffuser Retrofit Kit
10X Entries For Our Spin To Win Sweepstakes!
ECS - Corporate Logo
T#:2408497
Part#: 51747330558
In Stock
$ 319.99 USD
Free Shipping
$ 319.99 USD
Free Shipping

Street Flow Rear Diffuser - E92 M3
10X Entries For Our Spin To Win Sweepstakes!
ECS - Corporate Logo
T#:24179121
Part#: 047898LA01KT
In Stock
Sale - Save 42% $ 430.99
$ 249.99 USD
Free Shipping
Sale - Save 42% $ 430.99
$ 249.99 USD
Free Shipping

ECS Exclusive Proudly Offered at Turner Motorsport!

Add-on diffuser to deliver a true motorsport look to your M3. Fastened seamlessly to the bottom of the rear bumper giving a platform to show off your exhaust and complete the rear end of the E92.

The E92 M3 is an amazing looking car right out of the box but a common BMW issue is the height of the front vs rear bumpers. As far back as the E30, the front bumper is much lower than the rear bumper and the E92 M3 faces the same issue. With this problem the front bumper is always super low to the ground and the rear bumper looks in-complete. The ECS add-on diffuser is a unique option for balancing out the rear bumper with the height of the front bumper for a full and complete look. The E92 diffuser also features an optional center fin design to dial in the aesthetic you prefer!

Give your M3 that wild style that stands out from the crowd, and obtain a nice balanced look. This is just the start of a new line of Street Flow Diffusers diffusers that are a must have extension of your awesome ride. The diffusers come powder coated in a sleek satin-black finish, are a blast to install and fit seamlessly against the rear bumper for a professional looking install every time. The Street Flow diffuser attaches below your factory rear diffuser and exhaust of your choosing to fill out the rear end for a nice full and aggressive styling profile.

Lets take a trip together down a new and unique path. Over the years ECS has designed factory replacement ABS and Carbon Fiber diffusers for all different models of BMW's. For the factory replacements ECS focus was to take the oem characteristics and add a twist and really bring out a more aggressive look with a direct replacement diffuser. For their new line of diffusers, us as car enthusiasts wanted to design a set of diffusers that really pushed the envelope and stepped outside of the comfort zone. ECS's new line of add-on diffusers is a result of the engineering team and fellow enthusiasts spending time study the M3 chassis, modeling different designs, testing prototypes and making changes to get a final product that we are extremely excited to offer. The E92 M3 Street Flow Diffuser is part of a new line of diffusers. Check out the diffusers in the line-up including the E36 and the E46 M3 variations!

Features:

Optional center fin included
Adds an aggressive aesthetic in addition to the subtle factory rear diffuser
Lightweight and durable 10ga aluminum in satin black powder coat to blend with the factory trim color
Installation is secure and simple with ample adjustability built in for perfect fitment
Design:

10 ga 5052 aluminum construction
Black satin powder coat for long term corrosion resistance
5 piece design to simplify installation
Slotted mounting locations to allow for mounting adjustment
Laser cut ECS logo pre powder coat for a smooth finish
Hidden hardware for better aesthetic

Show More Show Less
3D Design - Corporate Logo
T#:4634865
Part#: 3108-32021
Ships in 3 Business Days
$ 2,295.00 USD
Free Shipping
$ 2,295.00 USD
Free Shipping
This gorgeous rear diffuser from 3D Design boasts all the major values this brand embodies; exquisite attention to detail, masterful finish work, and supreme fitment. Featuring a dry carbon-fiber weave pattern laid with care and attention, and a deep rich clear coat finish that will last for years to come, this is a part worth far more than its weight in carbon. 3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look. For non-M340i installation, the following OEM parts are needed: 51128079607 51718091107 Fits 3D Design 4 tail tip exhaust or M340i OEM exhaust
Show More Show Less

Carbon Fiber Rear Diffuser E63 E64 M6
2X Entries For Our Spin To Win Sweepstakes!
Suvneer - Corporate Logo
T#:1150758
Part#: E63M6CFDIF
Ships in 5 Business Days
$ 437.95 USD
Free Shipping
$ 437.95 USD
Free Shipping

Enhance the appearance of your BMW with Turner Motorsport's Carbon Fiber Rear Diffuser. Made from high-quality carbon fiber, this diffuser offers a sleek and sporty look without the need for painting. Transform the character of your BMW with this stylish upgrade.

  • Adds a sporty and aggressive appearance
  • Made from high-quality carbon fiber for durability
  • No need for painting, saving time and effort
  • Enhances the overall aesthetics of your BMW
Show More Show Less
3D Design - Corporate Logo
T#:390514
Part#: 3108-19231
Ships in 3 Business Days
$ 1,995.00 USD
Free Shipping
$ 1,995.00 USD
Free Shipping

These 3D Design side skirts were designed to provide an aggressive, individual stylistic touch to your BMW without being overbearing. Constructed from beautiful carbon fiber, they attach easily and accentuate your BMW's natural body lines, creating a high-class performance look. 

3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look.

Show More Show Less

Suvneer Performance Rear Diffuser - E90 335i/xi/d
2X Entries For Our Spin To Win Sweepstakes! For vehicles with M-Sport Rear Bumper
Suvneer - Corporate Logo
T#:7292026
Part#: E90PDIFF335
Ships in 5 Business Days
$ 255.00 USD
Free Shipping
$ 255.00 USD
Free Shipping
Performance inspired matte black plastic diffuser for the E90 3-series. Direct bolt-on, no modification required. **Does not fit 325/328/330i. Requires M-Sport rear bumper.

3D Design - Corporate Logo
T#:390517
Part#: 3108-20631
Ships in 3 Business Days
$ 2,150.00 USD
Free Shipping
$ 2,150.00 USD
Free Shipping

These 3D Design side skirts were designed to provide an aggressive, individual stylistic touch to your BMW without being overbearing. Constructed from beautiful carbon fiber, they attach easily and accentuate your BMW's natural body lines, creating a high-class performance look. 

3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look.

Show More Show Less
Alpha-N - Corporate Logo
T#:36269422
Part#: AN-0906
Ships in 3 Business Days
New Item
$ 2,125.00 USD
Free Shipping
$ 2,125.00 USD
Free Shipping

Alpha-N's V2 carbon rear diffuser for the G90 M5 or G99 M5 Touring is significantly more aggressive and functional vs the more OE-styled V1 piece. Featuring an integrated "underbody floor" section around the center of the diffuser, the V2 carbon piece both increases downforce and reduces drag vs the V1 variant.

All Alpha-N exterior parts are focused on functional aerodynamic improvements, and the G9X M5 V2 rear diffuser is no exception while also enhancing the rear styling.

Product Details:

2x2 weave; carbon pre-preg construction

Gloss finish

Show More Show Less
PSM Designed Rear Bump Splitter - F80 M3
2X Entries For Our Spin To Win Sweepstakes!
Suvneer - Corporate Logo
T#:26771694
Part#: F80PSMRRSPL
Ships in 5 Business Days
$ 280.00 USD
Free Shipping
$ 280.00 USD
Free Shipping
The PSM Designed F80 Rear Bumper Splitter is a meticulously crafted aerodynamic enhancement tailored specifically for the BMW F80 M3. Precision-engineered to seamlessly integrate with the vehicle's rear bumper, this splitter enhances both the visual appeal and the performance capabilities of the car. Crafted from high-quality materials such as carbon fiber, the splitter not only adds a touch of sporty elegance but also serves a functional purpose by optimizing airflow dynamics. Its sleek design complements the aggressive lines of the BMW F80, creating a cohesive and refined appearance. Installation of the PSM Designed F80 Rear Bumper Splitter is straightforward and hassle-free, with precise fitment ensuring a factory-like finish. Whether navigating city streets or carving through winding roads, this splitter enhances stability and downforce, resulting in improved handling and traction. Beyond its performance benefits, the splitter adds a touch of individuality to the BMW F80, allowing enthusiasts to personalize their vehicle while simultaneously enhancing its overall aerodynamic profile. Whether on the track or during spirited drives, the PSM Designed F80 Rear Bumper Splitter stands as a testament to both form and function, elevating the driving experience to new heights. Key Features: Material: High-quality dry carbon fiber Precision Fitment: Designed for the F80 M3 chassis for a seamless integration Lightweight: Rear splitters are made of high quality carbon fiber. Aerodynamic Enhancement: Improves airflow and downforce for better stability Sleek Design: Adds a sporty and aggressive look to your vehicle Build Material: Fiber-Reinforced Polymer and Glossy Carbon Fiber Coating Professional installation is recommended.
Show More Show Less


F10 Carbon Fiber Rear Diffusor For Quad Exhaust
2X Entries For Our Spin To Win Sweepstakes! For M-Sport Bumpers Only
Suvneer - Corporate Logo
T#:5430316
Part#: F10QUADDF-2FINS
Ships in 5 Business Days
$ 499.99 USD
Free Shipping
$ 499.99 USD
Free Shipping
Set your vehicle up for quad tips and give your F10 an amazing look
F30 M Performance Style Diffuser - dual Exhaust
10X Entries For Our Spin To Win Sweepstakes!
ECS - Corporate Logo
T#:383337
Part#: 012196ECS12A
Ships in 5 Business Days
Sale - Save 15% $ 323.99
$ 275.39 USD
Free Shipping
Sale - Save 15% $ 323.99
$ 275.39 USD
Free Shipping

BMW Performance Style Rear Diffuser

Enhance the rear aesthetics of your BMW with a striking BMW Performance Style Rear Diffuser. Whether you're replacing an original or complementing your existing bumper, this diffuser exudes an aggressive style that stands out. Designed to accentuate your vehicle's rear while following its natural lines, it ensures a distinctive appearance. Enjoy a hassle-free installation with guaranteed fitment, elevating your BMW's visual appeal effortlessly.

Show More Show Less
Alpha-N - Corporate Logo
T#:27105141
Part#: AN-0319
Ships in 3 Business Days
$ 1,995.00 USD
Free Shipping
$ 1,995.00 USD
Free Shipping
Alpha-N has a reputation for pushing the boundaries of performance and style. With Alpha-N's connection to BMW Motorsport and their track record of producing high-quality carbon parts, their latest G8X M2 / M3 / M4 components are no exception. Designed as a 2 part system, but available to be installed on its own, Alpha's new carbon rear diffuser takes its cues from the G87 M2's existing bodylines and enhances the rear styling, striking the perfect balance of aggression and elegance. The pre-preg carbon construction in a 2x2 weave minimizes weight while maximizing strength.
Show More Show Less

3D Design - Corporate Logo
T#:390510
Part#: 3108-19041
Ships in 3 Business Days
$ 1,495.00 USD
Free Shipping
$ 1,495.00 USD
Free Shipping

These 3D Design side skirts were designed to provide an aggressive, individual stylistic touch to your BMW without being overbearing. Constructed from beautiful carbon fiber, they attach easily and accentuate your BMW's natural body lines, creating a high-class performance look. 

3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look.

Show More Show Less

Suvneer M Performance Diffuser - E92/E93 335i
2X Entries For Our Spin To Win Sweepstakes! For vehicles with M-Sport Rear Bumper
Suvneer - Corporate Logo
T#:7813202
Part#: E92PDIF335
Ships Jul 15, 2025
$ 260.00 USD
Free Shipping
$ 260.00 USD
Free Shipping
Performance inspired matte black plastic diffuser for the E92/E93 3-series. Direct bolt-on, no modification required. Ensure that all metal clips are attached to diffuser for proper installation! **Does not fit 328. Requires M-Sport rear bumper.
Show More Show Less
JCW GP2 Rear Center Diffuser Retrofit Kit - Gloss Black
10X Entries For Our Spin To Win Sweepstakes!
ECS - Corporate Logo
T#:10128411
Part#: 51747330558GB
In Stock
Sale - Save 4% $ 319.99
$ 307.69 USD
Free Shipping
Sale - Save 4% $ 319.99
$ 307.69 USD
Free Shipping

Upgrade your MINI's appearance with the JCW GP II Rear Diffuser Kit, designed to add a high-performance look to your vehicle. This kit allows you to seamlessly integrate the JCW GP II rear diffuser with the JCW Aero rear bumper section, enhancing the overall aesthetic of your MINI. Designed to match the gloss black JCW aero kit trims, this kit includes textured OEM finishes on the underside to maintain a Genuine MINI look. Whether you're adding it to a stock JCW bumper or pairing it with other gloss black accessories, this kit ensures a sleek and cohesive design.

  • Adds a high-performance look to your MINI
  • Seamless integration with JCW Aero rear bumper section
  • Matches gloss black JCW aero kit trims
  • Textured OEM finish maintains Genuine MINI appearance
  • Includes all necessary brackets and hardware for installation
Show More Show Less

3D Design - Corporate Logo
T#:390502
Part#: 3108-18221
In Stock
$ 1,695.00
$ 1,593.99 USD
Limited Qty Sale
Free Shipping
$ 1,695.00
$ 1,593.99 USD
Limited Qty Sale
Free Shipping

These 3D Design side skirts were designed to provide an aggressive, individual stylistic touch to your BMW without being overbearing. Constructed from beautiful carbon fiber, they attach easily and accentuate your BMW's natural body lines, creating a high-class performance look. 

3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look.

Show More Show Less
BMW F30 M Performance Style Diffuser - Quad Exhaust
10X Entries For Our Spin To Win Sweepstakes!
ECS - Corporate Logo
T#:383336
Part#: 012196ECS11A
In Stock
Sale - Save 21% $ 311.99
$ 246.99 USD
Limited Qty Sale
Free Shipping
Sale - Save 21% $ 311.99
$ 246.99 USD
Limited Qty Sale
Free Shipping

Upgrade your BMW F30's appearance with the BMW F30 M Performance Style Diffuser - Quad Exhaust. This high-quality diffuser is designed to replicate the sleek styling of the M Performance models, enhancing the look of your BMW F30. With its quad exhaust design and precise fitment, this diffuser is a perfect choice for those seeking to add a sporty touch to their vehicle.

  • Replicates the sleek styling of the M Performance models
  • Enhances the appearance of your BMW F30
  • Quad exhaust design for a sporty look
  • Precise fitment ensures easy installation
Show More Show Less

ECS Street Flow Rear Diffuser - E46 M3
10X Entries For Our Spin To Win Sweepstakes!
ECS - Corporate Logo
T#:20815172
Part#: 047616LA01KT
In Stock
Sale - Save 40% $ 499.99
$ 299.99 USD
Free Shipping
Sale - Save 40% $ 499.99
$ 299.99 USD
Free Shipping

ECS Exclusive Proudly Offered at Turner Motorsport!

Add-on diffuser to deliver a true motorsport look to your M3. Fastened seamlessly to the bottom of the rear bumper giving a platform to show off your exhaust and complete the rear end of the E46.

The E46 M3 is an amazing looking car right out of the box but a common BMW issue is the height of the front vs rear bumpers. As far back as the E30, the front bumper is much lower than the rear bumper and the E46 M3 faces the same issue. With this problem the front bumper is always super low to the ground and the rear bumper looks in-complete. The ECS add-on diffuser is a unique option for balancing out the rear bumper with the height of the front bumper for a full and complete look.

Give your M3 that wild style that stands out from the crowd, and obtain a nice balanced look. This is just the start of a new line of Street Flow Diffusers diffusers that are a must have extension of your awesome ride. The diffusers come powder coated in a sleek satin-black finish, are a blast to install and fit seamlessly against the rear bumper for a professional looking install every time. The Street Flow diffuser attaches below your factory rear diffuser and exhaust of your choosing to fill out the rear end for a nice full and aggressive styling profile.

Lets take a trip together down a new and unique path. Over the years ECS has designed factory replacement ABS and Carbon Fiber diffusers for all different models of BMW's. For the factory replacements ECS focus was to take the oem characteristics and add a twist and really bring out a more aggressive look with a direct replacement diffuser. For their new line of diffusers, us as car enthusiasts wanted to design a set of diffusers that really pushed the envelope and stepped outside of our comfort zone. Our new line of add-on diffusers is a result of our engineering team and fellow enthusiasts spending time study the M3 chassis, modeling different designs, testing prototypes and making changes to get a final product that we are extremely excited to offer. The E46 M3 Street Flow Diffuser is the first in our line of new diffusers. Stay tuned for the E36 M3 and the E92 M3 diffusers next!

Features:

Adds an aggressive aesthetic in addition to the subtle factory rear diffuser
Lightweight and durable 10ga aluminum in satin black powder coat to blend with the factory trim color
Installation is secure and simple with ample adjustability built in for perfect fitment
Design:

10 ga 5052 aluminum construction
Black satin powder coat for long term corrosion resistance
5 piece design to simplify installation
Slotted mounting locations to allow for mounting adjustment
Laser cut ECS logo pre powder coat for a smooth finish
Hidden hardware for better aesthetic

Show More Show Less

3D Design - Corporate Logo
T#:390504
Part#: 3108-18931
Ships in 3 Business Days
$ 1,875.00 USD
Free Shipping
$ 1,875.00 USD
Free Shipping

These 3D Design side skirts were designed to provide an aggressive, individual stylistic touch to your BMW without being overbearing. Constructed from beautiful carbon fiber, they attach easily and accentuate your BMW's natural body lines, creating a high-class performance look. 

3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look.

Show More Show Less
3D Design - Corporate Logo
T#:390505
Part#: 3108-19011
Ships in 3 Business Days
$ 1,995.00 USD
Free Shipping
$ 1,995.00 USD
Free Shipping

These 3D Design side skirts were designed to provide an aggressive, individual stylistic touch to your BMW without being overbearing. Constructed from beautiful carbon fiber, they attach easily and accentuate your BMW's natural body lines, creating a high-class performance look. 

3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look.

Show More Show Less
3D Design - Corporate Logo
T#:4634874
Part#: 3108-30111
Ships in 3 Business Days
$ 1,595.00 USD
Free Shipping
$ 1,595.00 USD
Free Shipping
This gorgeous rear diffuser from 3D Design boasts all the major values this brand embodies; exquisite attention to detail, masterful finish work, and supreme fitment. Featuring a dry carbon-fiber weave pattern laid with care and attention, and a deep rich clear coat finish that will last for years to come, this is a part worth far more than its weight in carbon. 3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look.
Show More Show Less


3D Design - Corporate Logo
T#:390507
Part#: 3108-19021
Ships in 3 Business Days
$ 1,995.00 USD
Free Shipping
$ 1,995.00 USD
Free Shipping

These 3D Design side skirts were designed to provide an aggressive, individual stylistic touch to your BMW without being overbearing. Constructed from beautiful carbon fiber, they attach easily and accentuate your BMW's natural body lines, creating a high-class performance look. 

3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look.

Show More Show Less
Alpha-N - Corporate Logo
T#:36269421
Part#: AN-0904
Ships in 3 Business Days
New Item
$ 1,895.00 USD
Free Shipping
$ 1,895.00 USD
Free Shipping

Available in 2 different versions, Alpha-N's V1 carbon rear diffuser for the G90 M5 or G99 M5 Touring expands slightly on the original rear diffuser helping to accentuate the existing bodylines and enhances the rear styling with carbon construction.

While Alpha-N ensures all their aerodynamic parts are fully functional, the G9X M5 V1 rear diffuser focuses on function while maintaining the car's elegance.

Product Details:

2x2 weave; carbon pre-preg construction

Gloss finish

Show More Show Less
Dinan Carbon Fiber Rear Diffuser Surround - G80/G82/G83
5X Entries For Our Spin To Win Sweepstakes!
Dinan - Corporate Logo
T#:23020158
Part#: D980-0049
Ships in 5 Business Days
$ 849.99 USD
Free Shipping
$ 849.99 USD
Free Shipping
Rather than replace the full diffuser and have potential fitment challenges with various exhaust options Dinan has opted to retain the factory gloss black lower portion of the diffuser and only replace the upper diffuser surround with a carbon fiber accent piece. This solution not only guarantees the carbon cosmetics will always play well with any personalization of the exhaust that is adopted but also offers an economical option compared to much pricier alternatives. Together with the Dinan Rear Side Splitters, the combination creates a "full" rear diffuser that is restrained but elevated and creates a nuanced OEM+ option for the marketplace. Features: 2x2 gloss twill dry carbon fiber (pre-preg) manufactured to be impact-resistant, durable, and strong Clear-coated for maximum UV protection and fade resistance Utilizes factory mounting tabs for an easy installation with a clean fit and finish Pair together with the Dinan Rear Side Splitters to complete the full rear look
Show More Show Less

3D Design - Corporate Logo
T#:390503
Part#: 3108-18921
Ships in 3 Business Days
$ 1,584.00 USD
Free Shipping
$ 1,584.00 USD
Free Shipping

These 3D Design side skirts were designed to provide an aggressive, individual stylistic touch to your BMW without being overbearing. Constructed from beautiful carbon fiber, they attach easily and accentuate your BMW's natural body lines, creating a high-class performance look. 

3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look.

Show More Show Less

3D Design - Corporate Logo
T#:390519
Part#: 3108-21021
Ships in 3 Business Days
$ 1,695.00 USD
Free Shipping
$ 1,695.00 USD
Free Shipping

These 3D Design side skirts were designed to provide an aggressive, individual stylistic touch to your BMW without being overbearing. Constructed from beautiful carbon fiber, they attach easily and accentuate your BMW's natural body lines, creating a high-class performance look. 

3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look.

Show More Show Less
3D Design - Corporate Logo
T#:23416490
Part#: 3108-25622
Ships in 3 Business Days
$ 1,595.00 USD
Free Shipping
$ 1,595.00 USD
Free Shipping
Transform your Mini with the 3D Design rear spoiler, adding a distinctive yet tasteful touch. Crafted from premium Carbon Fiber, this spoiler seamlessly enhances your Mini's aesthetics while complementing its original body lines. Easy to attach, it exudes a high-performance look. For optimal results, ECS Tuning recommends professional painting and installation by a body shop expert.
  • Distinctive yet subtle addition to your Mini's style
  • Crafted from high-quality Carbon Fiber
  • Accentuates natural body lines for a sophisticated appearance
  • Easy attachment for an enhanced performance look
  • Professional painting and installation recommended
Show More Show Less

3D Design - Corporate Logo
T#:4634835
Part#: 3108-29311
Ships in 3 Business Days
$ 2,795.00 USD
Free Shipping
$ 2,795.00 USD
Free Shipping
This gorgeous rear diffuser from 3D Design boasts all the major values this brand embodies; exquisite attention to detail, masterful finish work, and supreme fitment. Featuring a dry carbon-fiber weave pattern laid with care and attention, and a deep rich clear coat finish that will last for years to come, this is a part worth far more than its weight in carbon. 3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look. 2x2 Twill Carbon Construction Attaches in place of stock diffuser *Note: Hands-free tailgate opening function may not function with diffuser installed.
Show More Show Less
3D Design - Corporate Logo
T#:4634879
Part#: 3108-30121
Ships in 3 Business Days
$ 1,595.00 USD
Free Shipping
$ 1,595.00 USD
Free Shipping
This gorgeous rear diffuser from 3D Design boasts all the major values this brand embodies; exquisite attention to detail, masterful finish work, and supreme fitment. Featuring a dry carbon-fiber weave pattern laid with care and attention, and a deep rich clear coat finish that will last for years to come, this is a part worth far more than its weight in carbon. 3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look.
Show More Show Less

3D Design - Corporate Logo
T#:587530
Part#: 3108-32011
Ships in 3 Business Days
$ 2,295.00 USD
Free Shipping
$ 2,295.00 USD
Free Shipping

3D Design - Corporate Logo
T#:390528
Part#: 3108-23021
Ships in 3 Business Days
$ 1,695.00 USD
Free Shipping
$ 1,695.00 USD
Free Shipping

These 3D Design side skirts were designed to provide an aggressive, individual stylistic touch to your BMW without being overbearing. Constructed from beautiful carbon fiber, they attach easily and accentuate your BMW's natural body lines, creating a high-class performance look. 

3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look.

Show More Show Less
3D Design - Corporate Logo
T#:390501
Part#: 3108-18211
Ships in 3 Business Days
$ 1,695.00 USD
Free Shipping
$ 1,695.00 USD
Free Shipping

These 3D Design side skirts were designed to provide an aggressive, individual stylistic touch to your BMW without being overbearing. Constructed from beautiful carbon fiber, they attach easily and accentuate your BMW's natural body lines, creating a high-class performance look. 

3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look.

Show More Show Less
Dinan Carbon Fiber Rear Side Splitters - G82/G83
5X Entries For Our Spin To Win Sweepstakes!
Dinan - Corporate Logo
T#:23020150
Part#: D980-0050
Ships in 5 Business Days
$ 499.99 USD
Free Shipping
$ 499.99 USD
Free Shipping
Dinan Carbon Fiber Rear Side Splitters (rear winglets) offer a simple straightforward solution to enhancing the rear quarters of your G82/G83 M4. Together with the Dinan Rear Diffuser Surround, the combination creates a "full" rear diffuser that is restrained but elevated and creates a nuanced OEM+ option for the marketplace. Features: 2x2 gloss twill dry carbon fiber (pre-preg) manufactured to be impact-resistant, durable, and strong Clear-coated for maximum UV protection and fade resistance Includes mounting screws and also utilizes factory mounting tabs for an easy installation with a clean fit and finish Pair together with the Dinan Rear Diffuser Surround to complete the full rear look
Show More Show Less


3D Design - Corporate Logo
T#:390529
Part#: 3108-23031
Ships in 3 Business Days
$ 1,695.00 USD
Free Shipping
$ 1,695.00 USD
Free Shipping

These 3D Design side skirts were designed to provide an aggressive, individual stylistic touch to your BMW without being overbearing. Constructed from beautiful carbon fiber, they attach easily and accentuate your BMW's natural body lines, creating a high-class performance look. 

3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look.

Show More Show Less
3D Design - Corporate Logo
T#:4621110
Part#: 3108-29711
Ships in 3 Business Days
$ 2,695.00 USD
Free Shipping
$ 2,695.00 USD
Free Shipping
This gorgeous rear diffuser from 3D Design boasts all the major values this brand embodies; exquisite attention to detail, masterful finish work, and supreme fitment. Featuring a 2x2 twill carbon-fiber weave pattern laid with care and attention, and a deep rich clear coat finish that will last for years to come, this is a part worth far more than its weight in carbon. 3D Design is focused on high-quality styling components that allow you to personalize the look of your BMW & remain true to the car's original form. Inspired by European tuning trends & Japan's unique VIP tuning style, their wide range of lips, diffusers, side skirts, & spoilers are made from high-quality urethane or super light, super strong prepreg dry carbon and install easily to your factory bumpers & skirts to offer an understated, aggressive performance look. 2x2 Twill CFRP Construction Includes instructions and hardware
Show More Show Less