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BMW Widebody Kits

If you're looking to completely transform the look of your BMW, you might be interested in a full aero package. Some of these are only for the most dedicated to track styling and aerodynamics, requiring irreversible modifications. Those afraid of commitment need not apply.
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ECS Street Flow Rear Diffuser - E46 M3
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:20815172
Part#: 047616LA01KT
Ships in 1 day
Sale - Save 15% $ 520.99

This product was last offered at the strikethrough price on
06-14-2026

$ 442.84 USD
Free Shipping
Sale - Save 15%
$ 520.99

This product was last offered at the strikethrough price on
06-14-2026

$ 442.84 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

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ECS - Corporate Logo
T#:2408490
Part#: 51192154643
Special Order: No Guaranteed ETA
Sale - Save 22% $ 1,664.99

This product was last offered at the strikethrough price on
06-14-2026

$ 1,299.99 USD
Free Shipping
Sale - Save 22%
$ 1,664.99

This product was last offered at the strikethrough price on
06-14-2026

$ 1,299.99 USD
Free Shipping
Upgrade to the JCW style body kit
Genuine MINI - Corporate Logo
T#:522343
Part#: 51192339038
In Stock
6% off MSRP $ 486.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 456.99 USD
Free Shipping
6% off MSRP
$ 486.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 456.99 USD
Free Shipping

AUTOTECKNIC - Corporate Logo
T#:593659
Part#: ATK-BM-0365-30
Ships in 7 Business Days
$ 200.00 USD
Free Shipping
$ 200.00 USD
Free Shipping
Add a stylish touch to your exterior door handles with dry carbon fiber door handle covers. The aesthetic of carbon fiber will definitely separate your BMW from the rest. These dry carbon fiber door handle covers are made from 3K twill weave carbon fiber for the ultimate light-weight, high-durability, and precise-fitment. Includes adhesive backing required for installation.
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Genuine MINI - Corporate Logo
T#:197031
Part#: 51627382171
Ships in 1 day
11% off MSRP $ 70.27

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 62.55 USD
Free Shipping
11% off MSRP
$ 70.27

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 62.55 USD
Free Shipping
Genuine Bmw Black Band Spoiler, Front Le
Street Flow Rear Diffuser - E92 M3
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:24179121
Part#: 047898LA01KT
In Stock
$ 448.99 USD
Free Shipping
$ 448.99 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

Clinched - Corporate Logo
T#:11595378
Part#: BMW-E82WD
Special Order: No Guaranteed ETA
$ 4,070.00 USD
Free Shipping
$ 4,070.00 USD
Free Shipping
Clinched's BMW E82 widebody kit allows you to take exterior design to a next level. Your 1-series will look much wider and meaner with additional flares and bumper components. This kit will allow for a much more aggressive wheel and tire combo thus helping you put all that power to the ground.
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ECS JCW Body Kit - F55
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:2528150
Part#: F55JCWBODYKIT
In Stock
Sale - Save 57% $ 1,854.99

This product was last offered at the strikethrough price on
05-03-2026

$ 800.00 USD
Free Shipping
Sale - Save 57%
$ 1,854.99

This product was last offered at the strikethrough price on
05-03-2026

$ 800.00 USD
Free Shipping

ECS JCW Body Kit - F56 MINI Cooper S/JCW
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:2528151
Part#: F56JCWBODYKIT
In Stock
Sale - Save 31% $ 1,892.99

This product was last offered at the strikethrough price on
09-02-2026

$ 1,299.99 USD
Free Shipping
Sale - Save 31%
$ 1,892.99

This product was last offered at the strikethrough price on
09-02-2026

$ 1,299.99 USD
Free Shipping

Genuine MINI - Corporate Logo
T#:522344
Part#: 51192339041
Ships in 1 day
5% off MSRP $ 99.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 93.99 USD
Free Shipping
5% off MSRP
$ 99.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 93.99 USD
Free Shipping
Genuine BMW - Corporate Logo
T#:117961
Part#: 51717894707
Ships in 5 Business Days
2% off MSRP $ 500.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 490.99 USD
Free Shipping
2% off MSRP
$ 500.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 490.99 USD
Free Shipping


Genuine BMW Air Duct Front Left - M -
This item fits the following BMW Chassis:
E46