Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

BMW E82 Rear Bumper Diffusers

Sort By
Filter By
Return to Top

E8x M-Sport Rear Diffuser - Textured Black

ES#4708725 - 040790LA01-02 - E8x M-Sport Rear Diffuser - Textured Black - Transform the entire aesthetic of your 1 series with a simple yet effective diffuser upgrade! - ECS - BMW

Transform the entire aesthetic of your 1 series with a simple yet effective diffuser upgrade! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4708725
Mfg#:
040790LA01-02
In Stock
ON SALE! SAVE 37%
$397.99

This product was last offered at the strikethrough price on
05-02-2026

$249.99 USD
This product is lifetime replacement eligible Lifetime Replacement

E82/E88 135 Muffler Delete & M-Sport Rear Diffuser

ES#4876665 - 039172EBKT - E82/E88 135 Muffler Delete & M-Sport Rear Diffuser - 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. - Enthusiast Bundles - BMW

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. Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876665
Mfg#:
039172EBKT
In Stock
ON SALE! SAVE 37%
$947.97

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

$599.00 USD
This product is lifetime replacement eligible Lifetime Replacement

E8x M-Sport Rear Diffuser - Gloss Black

ES#4708723 - 040790LA01-01 - E8x M-Sport Rear Diffuser - Gloss Black - Transform the entire aesthetic of your 1 series with a simple yet effective diffuser upgrade! - ECS - BMW

Transform the entire aesthetic of your 1 series with a simple yet effective diffuser upgrade! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4708723
Mfg#:
040790LA01-01
In Stock
ON SALE! SAVE 20%
$405.99

This product was last offered at the strikethrough price on
06-13-2026

$324.79 USD
This product is lifetime replacement eligible Lifetime Replacement

E82/E88 135 Cat-Back Exhaust w/ Black Chrome Tips & M-Sport Gloss Black Rear Diffuser

Lightweight cat-back featuring an exotic exhaust note AND an upgraded M-Sport Rear Diffuser. Transform the entire aesthetic and sound of your 1 series with this ECS upgrade package! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
5394205
Mfg#:
019281LAEB1KT
In Stock
$1597.97 USD
This product is lifetime replacement eligible Lifetime Replacement

3D Design E82 1-Series M-Sport Front Lip Carbon Fiber Rear Diffuser - Quad Exhaust

ES#3175905 - 3108-18221 - 3D Design E82 1-Series M-Sport Front Lip Carbon Fiber Rear Diffuser - Quad Exhaust - Individualize your BMW's looks with this carbon fiber rear diffuser - 3D Design - BMW

Individualize your BMW's looks with this carbon fiber rear diffuser For vehicles with M Sport package

Brand:
3D Design - Corporate Logo
ES#:
3175905
Mfg#:
3108-18221
Ships in 3 Business Days
Limited Qty Sale
$1695.00

This product was last offered at the strikethrough price on
05-02-2026

$1593.99 USD
Free Shipping

E82/E88 135 Cat-Back Exhaust & M-Sport Rear Diffuser

ES#4876427 - 019281LAEBKT - E82/E88 135 Cat-Back Exhaust & M-Sport Rear Diffuser - Lightweight cat-back featuring an exotic exhaust note AND an upgraded M-Sport Rear Diffuser. Transform the entire aesthetic and sound of your 1 series with this ECS upgrade package! - Enthusiast Bundles - BMW

Lightweight cat-back featuring an exotic exhaust note AND an upgraded M-Sport Rear Diffuser. Transform the entire aesthetic and sound of your 1 series with this ECS upgrade package! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876427
Mfg#:
019281LAEBKT
In Stock
ON SALE! SAVE 22%
$1597.97

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

$1249.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear diffuser

ES#2225428 - 51128051910 - Rear diffuser - Located in the rear bumper - Genuine BMW - BMW

Located in the rear bumper

Brand:
Genuine BMW - Corporate Logo
ES#:
2225428
Mfg#:
51128051910
Ships in 3 Business Days
9% off MSRP

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

$279.99

This product was last offered at the strikethrough price on
07-20-2026

$256.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Diffuser

ES#76665 - 51128045506 - Rear Diffuser - Located in the rear bumper - Genuine BMW - BMW

Located in the rear bumper For vehicles with M sport bumper

Brand:
Genuine BMW - Corporate Logo
ES#:
76665
Mfg#:
51128045506
Ships in 3 Business Days
9% off MSRP

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

$218.99

This product was last offered at the strikethrough price on
07-20-2026

$199.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Let us help you find the parts that fit your BMW

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings