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 Rear Bumper Diffusers

Sort By
Filter By
Return to Top

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

E92 M3 Street Flow Rear Diffuser

ES#4743323 - 047898la01KT - E92 M3 Street Flow Rear Diffuser - Add-on diffuser to deliver a true motorsport look to your M3. Fastens seamlessly to the bottom of the rear bumper giving a platform to show off your exhaust and complete the rear end of the E92. - ECS - BMW

Add-on diffuser to deliver a true motorsport look to your M3. Fastens seamlessly to the bottom of the rear bumper giving a platform to show off your exhaust and complete the rear end of the E92. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4743323
Mfg#:
047898LA01KT
In Stock
$448.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turner Carbon Upper & Lower Rear Diffuser Kit - F8X

ES#4007349 - 24623tmsKT - Turner Carbon Upper & Lower Rear Diffuser Kit - F8X - The ultimate exterior styling upgrade for any F8X! - Turner Motorsport - BMW

The ultimate exterior styling upgrade for any F8X! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
4007349
Mfg#:
24623TMSKT
In Stock
ON SALE! SAVE 15%
$2099.99

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

$1784.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

G87 M2 Gloss Black Rear Diffuser

ES#4714895 - 050525LA01 - G87 M2 Gloss Black Rear Diffuser - Transform the entire aesthetic of your M2 with a simple yet effective diffuser upgrade! - Turner Motorsport - BMW

Transform the entire aesthetic of your M2 with a simple yet effective diffuser upgrade! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
4714895
Mfg#:
050525LA01
In Stock
ON SALE! SAVE 34%
$438.99

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

$289.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BMW Performance Rear Diffuser - Carbon Fiber

ES#2766973 - 51192350697 - BMW Performance Rear Diffuser - Carbon Fiber - Elegant dynamics that blend seamlessly with the design of the rear bumper - Genuine BMW M Performance - BMW

Elegant dynamics that blend seamlessly with the design of the rear bumper

Brand:
Genuine BMW M Performance - Corporate Logo
ES#:
2766973
Mfg#:
51192350697
Ships in 3 Business Days
6% off MSRP

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

$1850.00

This product was last offered at the strikethrough price on
10-21-2026

$1739.29 USD
This product is lifetime replacement eligible Lifetime Replacement

E36 LTW Inspired Carbon Spoiler & Street Flow Rear Diffuser - Coupe

ES#4876644 - 008781LA01EBKT - E36 LTW Inspired Carbon Spoiler & Street Flow Rear Diffuser - Coupe - Classic LTW styling with an aggressive add-on rear diffuser to complete the rear end of your E36 coupe. - Enthusiast Bundles - BMW

Classic LTW styling with an aggressive add-on rear diffuser to complete the rear end of your E36 coupe. Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876644
Mfg#:
008781LA01EBKT
Ships on Apr 20, 2027
ON SALE! SAVE 23%
$2202.12

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

$1699.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Rear Diffuser - Quad Exhaust

ES#3175932 - 3108-23021 - 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 M Sport Rear Bumpers Only!

Brand:
3D Design - Corporate Logo
ES#:
3175932
Mfg#:
3108-23021
Back Ordered
$1695.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Rear Diffuser - Dual Exhaust

ES#3175933 - 3108-23031 - Carbon Fiber Rear Diffuser - Dual 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#:
3175933
Mfg#:
3108-23031
Back Ordered
$1695.00 USD
This product is lifetime replacement eligible Lifetime Replacement

ADRO Carbon Fiber Rear Diffuser - E92 M3

ES#5424343 - A14A20-1301 - ADRO Carbon Fiber Rear Diffuser - E92 M3 - Improve the appearance of your M3 with this carbon fiber rear diffuser from ADRO - ADRO INC. - BMW

Improve the appearance of your M3 with this carbon fiber rear diffuser from ADRO

Brand:
ADRO INC. - Corporate Logo
ES#:
5424343
Mfg#:
A14A20-1301
In Stock
$1690.00 USD

Toyota GR Supra MB-Style Carbon Fiber Rear Diffuser

Upgrade the look of your Supra with this carbon fiber rear diffuser from MB-Style

Brand:
Seibon - Corporate Logo
ES#:
4491443
Mfg#:
RD20TYSUP-MB
Ships in 2 Business Days
$1650.00 USD
Free Shipping
on orders $49 and up
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 Into Our F80 M3 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 & 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
$1597.97 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Rear Diffuser

Make your X3's rear end look even more aggressive! For Vehicles with M-Sport Rear Bumper Only

Brand:
3D Design - Corporate Logo
ES#:
4446177
Mfg#:
3108-30111
Ships in 3 Business Days
$1595.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Rear Diffuser

ES#4446183 - 3108-30121 - Carbon Rear Diffuser - Make your X3 M40i's rear end look even more aggressive! - 3D Design - BMW

Make your X3 M40i's rear end look even more aggressive!

Brand:
3D Design - Corporate Logo
ES#:
4446183
Mfg#:
3108-30121
Back Ordered
$1595.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Other BMW Rear Bumper Diffusers

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 Your Privacy Choices Cookie Policy ECS Tuning is part of Enthusiast Auto Holdings